SandMaster SM2506T - Water filter HAYWARD - Free user manual and instructions

Brand	Hayward
Model	SandMaster SM2506T
Product Type	High-Flow Sand Filter
Effective Filtration Area	3.14 ft² (0.29 m²)
Rated Flow Rate	63 GPM (238 L/min)
Maximum Working Pressure	50 psi (3.45 bar)
Side Clearance	18 in (45 cm)
Top Clearance	18 in (45 cm)
Required Material (Sand)	0.45 - 0.55 mm (#20 silica sand)
Sand Quantity	136 kg (300 lb)
Valve Type	6-Position Vari-Flo (Filter, Backwash, Rinse, Waste, Recirculate, Closed)
Tank Material	Anti-corrosion (resin or high-density polyethylene)
Functions	Filtration, backwash, rinse, waste drainage, recirculation, shut-off
Maintenance	Backwash when pressure increases 8-10 psi (4-6 bar) above initial pressure
Winterizing	Drain tank, unscrew drain plug, set valve to neutral position
Safety	Always stop pump before changing valve position
Replacement Parts	Pressure gauge (EC-2708-1), O-ring (GM-600-F), collar clamp (GM-600-NM), laterals (S-200-Q), drain plug (S-180-LM)
Repairability	Contact Hayward authorized service center
Warranty	See manual or dealer

Frequently Asked Questions - SandMaster SM2506T HAYWARD

How much sand is needed for the SandMaster SM2506T filter?

It requires 136 kg (300 lb) of silica sand with a grain size of 0.45 to 0.55 mm (#20).

How to install the Vari-Flo valve on the tank?

Place the collar clamp around the tank neck, insert the valve with the O-ring aligning the center tube, then tighten the clamp. Screw on the pressure gauge and connect the pump to the opening labeled PUMP.

When and how to backwash the filter?

Backwash when the pressure exceeds the initial pressure by 8 to 10 psi (0.55 to 0.69 bar). Stop the pump, set the valve to BACKWASH, restart until water is clear in the sight glass, then switch to RINSE for 30-60 seconds before returning to FILTER.

What to do if water flow is low?

Check that the skimmers and pump strainer are not clogged, that the inlet and outlet pipes are not blocked, that there is no air leak (bubbles in the return), and backwash the filter if necessary.

How to prepare the filter for winter?

Completely drain the tank by unscrewing the drain plug at the bottom. Remove the plug for the entire winter. Push down the valve handle and turn it between two positions to let water drain. Store the pump and motor in a dry, warm place.

What are the Vari-Flo valve settings and their use?

The positions are: FILTER (normal filtration), BACKWASH (clean sand), RINSE (after backwash), WASTE (bypass filter for draining or direct vacuum), RECIRCULATE (water circulates without filter), CLOSED (shuts off flow).

How to balance pool water for optimal filtration?

Maintain pH between 7.2 and 7.6, alkalinity between 100 and 130 ppm, free chlorine between 1 and 3 ppm (stabilized) or 0.3 to 1 ppm (unstabilized), and stabilizer between 40 and 70 ppm. Use appropriate chemicals to adjust.

What type of sand to use and how to load it?

Use #20 silica sand (0.45-0.55 mm). Fill the tank halfway with water, cover the center tube with a cap, pour sand gently, remove the cap, then level the surface.

Why is the water still cloudy despite filtration?

Check chlorine and pH (adjust if necessary), ensure sufficient flow, run the filter longer, and confirm the valve is in FILTER position. If problem persists, check for algae and superchlorinate.

Where to find spare parts for the SandMaster SM2506T?

Replacement parts (pressure gauge, O-ring, collar clamp, laterals, drain plug) are available from Hayward authorized dealers. Consult the manual for exact part numbers or contact a Hayward service center.

USER MANUAL SandMaster SM2506T HAYWARD

Your Sandmaster high rate sand filter is a high performance totally corrosion-proof filter that blends superior flow characteristics and features with ease of operation. It represents the very latest in high rate sand filter technology. It is virtually foolproof in design and operation and when installed, operated and maintained according to instructions, your filter will produce clear, sparkling water with only the least attention and care.

HOW IT WORKS

The Sandmaster uses special filter sand to remove dirt particles from pool water. Sand is loaded into the filter tank and functions as the permanent dirt removing media. The pool water, which contains suspended dirt particles, is pumped through your piping system and is automatically directed by the patented filter control valve to the top of the filter tank. As the pool water is pumped through the filter sand, dirt particles are trapped by the sand bed, and filtered out. The cleaned pool water is returned from the bottom of the filter tank, through the control valve and back to the pool through the piping system. This entire sequence is continuous and automatic and provides for total recirculation of pool water through your filter and piping system. After a period of time the accumulated dirt in the filter causes a resistance to flow, and the flow diminishes. This means it is time to clean (backwash) your filter. With the control valve in the backwash position, the water flow is automatically reversed through the filter so that it is directed to the bottom of the tank, up through the sand, flushing the previously trapped dirt and debris out of the waste line. Once the filter is backwashed (cleaned) of dirt, the control valve is manually resequenced to Rinse, and then Filter, to resume normal filtering.

INSTALLATION

Only simple tools (screwdriver and wrenches), plus pipe sealant for plastic adapters, are required to install and/or service the filter.

1. The filter system should be placed on level, very firm ground, or equivalent, as recommended by your pool dealer. Position the filter so that the piping connections, control valve and winter drain are convenient and accessible for operation, servicing and winterizing.

2. Assemble the Pump to the platform base. The flexible hose and adapters must now be installed to connect the pump/filter system.

a. Screw straight adapter, using Teflon pipe sealant tape or Permatex No. 2, securely into 1 1/2" pump discharge.
b. Screw other straight adapter, using Teflon pipe sealant tape or Permatex No. 2, securely into opening in control valve marked PUMP. (Do not overtighten.)

STOP here and load media per instructions (No. 3).

c. Place hose clamps on hose and fit hose over straight adapters and secure with clamps. If hose is difficult to fit over adapters, place hose in hot water for several minutes.

NOTE: To prevent breakage and damage to pump and control valve, use only pipe sealants specifically formulated for plastics. Do not overtighten fittings or adapters.

SPECIFICATIONS

MODEL NO.	EFFECTIVE FILTRATION AREA		DESIGN FLOW RATE		MAXIMUM WORKING PRESSURE				ABOVE CLEARANCES		DE CLEARANCEA REQUIRED
	FT^2	M^2	GPM	LPM	PSI	BAR	INCH	CM	INCH	CM	TYPE	LBS	KG
SM1706T	1.50	0.14	38	144	50	3.45	18	45	18	45	.45 mm -.55 mmNo 20 or No 1/2Silica Filter Sand	125	57
SM1906T	1.80	0.17	40	151	50	3.45	18	45	18	45		175	80
SM2106T	2.20	0.20	44	161	50	3.45	18	45	18	45		225	100
SM2306T	2.64	0.25	53	200	50	3.45	18	45	18	45		250	114
SM2506T	3.14	0.29	63	238	50	3.45	18	45	18	45		300	136

REF. NO.	PART NO.	DESCRIPTION	NO. REQ'D.
1	SP-0714TC	Vari-Flo Control Valve 6-Position	1
2	EC-2708-1	Pressure Gauge	1
3	GM-600-F	Valve/Tank O-Ring	1
4	GM-600-NM	Flange Clamp (Valve Tank)	1
5a	S-170-DA	Lateral Assy. (SM1706T)	1
5b	S-180-DA	Lateral Assy. (SM1906T)	1
5c	S-210-DA	Lateral Assy. (SM2106T)	1
5d	S-220-DA	Lateral Assy. (SM2306T)	1
5e	S-244-DA	Lateral Assy. (SM2506T)	1
6a	DP-10298-B	Filter Tank (SM1706T)	1
6b	S-180-AB	Filter Tank (SM1906T)	1
6c	S-210-AB	Filter Tank (SM2106T)	1
6d	S-220-AB	Filter Tank (SM2306T)	1
6e	S-244-AB	Filter Tank (SM2506T)	1
7	S-200-Q	Lateral	10
8	S-180-LM	Drain Cap & Gasket	1
9a	S-164-B	Base (SM1706T)	1
9b	S-200-J	Base (SM2306T, SM1906T, SM2106T & SM2506T)	1

Technical diagram of a mechanical device with numbered components and a close-up inset showing internal structure.

Figure A

1. Loading sand media. Filter sand media is loaded through the top opening of the filter.

a. Loosen flange clamp and remove Filter Control Valve (if previously installed).
b. Cap internal pipe with plastic cap to prevent sand from entering it. Be sure pipe is securely in place in bottom underdrain hub.
c. We recommend filling tank approximately 1/2 way with water to provide a cushioning effect when the filter sand is poured in. This helps protect the under-drain laterals from excessive shock. (Be sure the winter drain cap is securely in place on drain pipe.) Note: Please check to confirm all laterals are in the down position before loading with sand. See figure A.
d. Slowly pour in correct amount and grade of filter sand, as specified. (Be sure center pipe remains centered in opening.) Sand surface should be leveled and should come to about the middle of the filter tank. Remove plastic cap from internal pipe.

1. Assemble Filter Control Valve to filter tank.

a. Place stainless steel valve flange clamp around neck of tank. Do not tighten. Wipe filter flange clean.
b. Insert Filter Control Valve (with valve/flange o-ring in place) into the tank neck, taking care that the center pipe slips into the hole in the bottom of the valve. Place clamp around valve flange and tank flange and tighten just enough so that the valve may be rotated on tank for final positioning.
c. Carefully screw pressure gauge, with pipe tape, into 1/4 tapped hole in valve body. Do not overtighten.
d. Connect pump to control valve opening marked PUMP according to instructions. After connections are made, tighten valve flange clamp with screwdriver, tapping around clamp with screwdriver handle to help seat valve flange clamp.

1. Make return to pool pipe connection to control valve opening marked RETURN and complete other necessary plumbing connections, suction lines to pump, waste, etc.

2. Make electrical connections to pump per pump instructions.

3. To prevent water leakage, be sure winter drain cap is securely in place and all pipe connections are tight.

INITIAL START UP OF FILTER

1. Be sure correct amount of filter sand media is in tank and that all connections have been made and are secure.
2. Depress Vari-Flo control valve handle and rotate to BACKWASH position. (To prevent damage to control valve seal, always depress handle before turning.)

3. Prime and start pump according to pump instructions (be sure all suction and return lines are open), allowing the filter tank to fill with water. Once water flow is steady out the waste line, run the pump for at least 2 minutes. The initial backwashing of the filter is recommended to remove any impurities or fine sand particles in the sand media.

4. Turn pump off and set valve to RINSE position. Start pump and operate until water in sight glass is clear - about 1/2 to 1 minute. Turn pump off and set valve to FILTER position and restart pump. Your filter is now operating in the normal filter mode, filtering particles from the pool water.

5. Adjust pool suction and return valves to achieve desired flow. Check system and filter for water leaks and tighten connections, bolts, nuts, as required.
6. Note the initial pressure gauge reading when the filter is clean. (It will vary from pool to pool depending upon the pump and general piping system.) As the filter removes dirt and impurities from the pool water, the accumulation in the filter will cause the pressure to rise and flow to diminish. When the pressure gauge reading is 8-10 lbs. (4-6 BAR) higher than the initial "clean" pressure you noted, it is time to backwash (clean) the filter (see BACKWASH under Filter and Control Valve Functions).

NOTE: During initial clean-up of the pool water it may be necessary to backwash frequently due to the unusually heavy initial dirt load in the water.

CAUTION: To prevent unnecessary strain on piping system and valving, always shut off pump before switching Filter Control Valve Functions positions.

To prevent damage to the pump and filter and for proper operation of the system, clean pump strainer and skimmer baskets regularly.

FILTER AND CONTROL VALVE FUNCTIONS

FILTER - Set valve to FILTER for normal filtering. Also use regular vacuuming.

BACKWASH - For cleaning filter. When filter pressure gauge rises 8-10 lbs. (4-6 BAR) above start-up (clean pressure): Stop the pump, set valve to BACKWASH. Start pump and backwash until waste water is clear. Approximately 2 minutes or less depending on dirt accumulation. Proceed to RINSE.

RINSE - After backwashing, with pump off, set valve to RINSE. Start pump and operated for about 1/2 to 1 minute. This assures that all dirty water from backwashing is rinsed out of the filter to waste, preventing possible return to the pool. Stop pump, set valve to FILTER, and start pump for normal filtering.

WASTE - To bypass filter for draining or lowering water level and for vacuuming heavy debris directly to waste.

RECIRCULATE - Water is recirculated through the pool system by-passing the filter.

CLOSED - Shuts off flow from pump to filter.

VACUUMING - Vacuuming can be performed directly into the filter. When vacuuming heavy debris loads, set valve to WASTE position to bypass the filter and vacuum directly out to waste.

*NOTE: For new concrete or gunite pools, or where there is a large amount of plaster dust or debris - start filter in FILTER position (not BACKWASH) to prevent clogging of underdrain laterals.

WINTERIZING

1. Completely drain tank by unscrewing drain cap at base of filter. Leave drain cap off for the duration of the winter months.

2. Depress Vari-Flo control valve handle and rotate so as to set valve pointer on valve top between any position. This will allow water to drain from the valve. Leave valve in this "inactive" position.

3. ALL MOTORS AND PUMPS - Off season, motor should be stored indoors in a warm, dry place. Motors left outdoors should not be tightly wrapped with plastic, as moisture will be trapped, resulting in condensation and damage to the motor.

SERVICE & REPAIRS

Consult your local authorized Hayward dealer or service center. No returns may be made directly to the factory without the express written authorization of Hayward Pool Products, Canada, Inc.

PLEASE REALIZE...

Pure, clear swimming pool water is a combination of two factors - adequate filtration and proper water chemistry balance. One without the other will not give the clean water you desire. Your filter system is designed for continuous operation. However, this is not necessary for most swimming pools. You can determine your filter operation schedule based on your pool size and usage. Be sure

to operate your filtration system long enough each day to obtain at least one complete turnover of your pool water. To properly sanitize your pool, maintain a free chlorine level of 1 to 2 ppm and a pH range of 7.2 to 7.6. Insufficient chlorine or an out of balance pH level will permit algae and bacteria to grow in your pool and make it difficult for your filter to properly clean the pool water.

PROBLEM SOLVING LIST

REMEDY	LOW WATER FLOW	FILTER SHORT CYCLES	POOL WATER WON'T CLEAR UP
	1. Check skimmer and pump strainer baskets for debris.2. Check for restrictions in intake and discharge lines.3. Check for air leak in intake line (indicated by bubbles returning to pool).4. Backwash filter.	1. Check for algae in pool and superchlorinate as required.2. Be sure chlorine and pH levels are in proper range (adjust as required).3. Check surface of filter sand for crusting or caking (remove 1" of sand if necessary).	1. Check chlorine, pH and total alkalinity levels and adjust as required.2. Be sure flow rate through filter is sufficient.3. Operate filter for longer periods.4. Be sure control valve is set on "Filter" position.

POOL CHEMISTRY GUIDELINES

SUGGESTED POOL CHEMISTRY LEVELS		ACTION REQUIRED TO CORRECTED POOL CHEMISTRY
		TO RAISE	TO LOWER
pH	7.2 to 7.6	Add Soda Ash	Add Muriatic Acid or Sodium Bisulphate
TOTAL ALKALINITY	100 to 130 ppm	Add Sodium Bicarbonate	Add Muriatic Acid
CHLORINE (UNSTABILIZED)	0.3 to 1.0 ppm	Add Chlorine Chemical	No action - chlorine will naturally dissipate
CHLORINE (STABILIZED)	1.0 to 3.0 ppm	Add Chlorine Chemical	No action - chlorine will naturally dissipate
CHLORINE STABILIZER (Cyanuric Acid)	40 to 70 ppm	Add Stabilizer	Dilution - partially drain & refill pool with water that has not been treated with Cyranuric Acid.

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2880 PLYMOUTH DRIVE, OAKVILLE, ONTARIO L6H 5R4 1-888-238-7665

Sand MASTER

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