Hayward Gasket
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Hayward Perflex EC65 EC75 ECX1105 Diaphragm Gasket
Hayward Perflex EC65 EC75 ECX1105 Diaphragm Gasket
Paypal   US $29.85
Hayward Pro Series Pool Filter Drain Cap and Gasket SX180HG ^
Hayward Pro Series Pool Filter Drain Cap and Gasket SX180HG ^
Paypal   US $7.95
Hayward ECX5000G Diaphragm Gasket Fits EC40AC EC50AC DE Swimming Pool Filter
Hayward ECX5000G Diaphragm Gasket Fits EC40AC EC50AC DE Swimming Pool Filter
Paypal   US $39.99
Hayward Pool SP0710 15 Vari Flo Valve 5 Spoke Seat Gasket SPX0710XD
Hayward Pool SP0710 15 Vari Flo Valve 5 Spoke Seat Gasket SPX0710XD
Paypal   US $9.95
Hayward 2 Vari Flo Pool Valve Seat Gasket SPX0715D
Hayward 2 Vari Flo Pool Valve Seat Gasket SPX0715D
Paypal   US $11.95
3 4 DAY SHIPPING Hayward Vari Flo 5 Spoke Valve Seat Gasket SPX0710XD O 176A
3 4 DAY SHIPPING Hayward Vari Flo 5 Spoke Valve Seat Gasket SPX0710XD O 176A
Paypal   US $11.25
Hayward Filter Drain Pipe Assembly with Gaskets SX200EB
Hayward Filter Drain Pipe Assembly with Gaskets SX200EB
Paypal   US $18.49
Choice of Hayward Perflex EC40 Prt EC1004 Gasket EC1003
Choice of Hayward Perflex EC40 Prt EC1004 Gasket EC1003
Paypal   US $18.95
Hayward Multiport 4 Position 1 1 2 Valve Gasket O ring  SPX704D SPX704F
Hayward Multiport 4 Position 1 1 2 Valve Gasket O ring SPX704D SPX704F
Paypal   US $14.95
Hayward Multiport Vari Flo Valve Seat Gasket SPX710XD
Hayward Multiport Vari Flo Valve Seat Gasket SPX710XD
Paypal   US $11.95
Hayward ECX1003 Perflex Diaphragm Gasket Generic Fits EC50A Swimming Pool Filter
Hayward ECX1003 Perflex Diaphragm Gasket Generic Fits EC50A Swimming Pool Filter
Paypal   US $39.99
Hayward Vari Flo Valve 5 Spoke Seat Gasket SPX0710XD
Hayward Vari Flo Valve 5 Spoke Seat Gasket SPX0710XD
Paypal   US $11.59
Hayward Filter Valve Sight Glass and Gasket SPX0710MA
Hayward Filter Valve Sight Glass and Gasket SPX0710MA
Paypal   US $7.95
New Hayward Pro Series Sand Filter Replacement Parts
New Hayward Pro Series Sand Filter Replacement Parts
Paypal   US $4.99
Hayward Multiport Valve Seat Gasket SPX0740D
Hayward Multiport Valve Seat Gasket SPX0740D
Paypal   US $12.95
Hayward Valve Key Seat Gasket SPX0740D
Hayward Valve Key Seat Gasket SPX0740D
Paypal   US $10.00
Hayward Valve Key Gasket
Hayward Valve Key Gasket
Paypal   US $10.00
Hayward SPX0715D 2 Inch Spider Gasket For SP0715 Swimming Pool Vari Flo Valve
Hayward SPX0715D 2 Inch Spider Gasket For SP0715 Swimming Pool Vari Flo Valve
Paypal   US $21.99
SP710 GASKET SET HAYWARD BACKWASH
SP710 GASKET SET HAYWARD BACKWASH
Paypal   US $12.95
SIGHT GLASS GASKET FOR HAYWARD BACKWASH VALVE SP710 M
SIGHT GLASS GASKET FOR HAYWARD BACKWASH VALVE SP710 M
Paypal   US $6.95
3 4 DAY SHIPPING Hayward SPX0710XD 5 Spoke Gasket Valve Rebuild Kit Go Kit 10
3 4 DAY SHIPPING Hayward SPX0710XD 5 Spoke Gasket Valve Rebuild Kit Go Kit 10
Paypal   US $20.99
HAYWARD STAR CLEAR II FILTER HEAD GASKET CX800F
HAYWARD STAR CLEAR II FILTER HEAD GASKET CX800F
Paypal   US $8.99
Pleatco PA40 4 Hayward C 410 Easy Clear C400 open w molded gasket Unicel
Pleatco PA40 4 Hayward C 410 Easy Clear C400 open w molded gasket Unicel
Paypal   US $31.98
Pleatco PA106 PAK4 Hayward SwimClear C 4025 open w molded gasket Unicel C
Pleatco PA106 PAK4 Hayward SwimClear C 4025 open w molded gasket Unicel C
Paypal   US $174.98
Pleatco PA25 4 Hayward Star Clear C 250 open w molded gasket Unicel C 762
Pleatco PA25 4 Hayward Star Clear C 250 open w molded gasket Unicel C 762
Paypal   US $20.98
Pleatco PA40 Hayward C 410 Easy Clear C400 open w molded gasket Unicel C
Pleatco PA40 Hayward C 410 Easy Clear C400 open w molded gasket Unicel C
Paypal   US $24.98
Pleatco PA106 Hayward SwimClear C 4025 open w molded gasket Unicel C 7488
Pleatco PA106 Hayward SwimClear C 4025 open w molded gasket Unicel C 7488
Paypal   US $50.98
Pleatco PA81 Hayward SwimClear C 3025 open w molded gasket Unicel C 7483
Pleatco PA81 Hayward SwimClear C 3025 open w molded gasket Unicel C 7483
Paypal   US $38.98
Pleatco PA76 Hayward C751 Sta Rite PXC 75 open w molded gasket Unicel C 84
Pleatco PA76 Hayward C751 Sta Rite PXC 75 open w molded gasket Unicel C 84
Paypal   US $45.98
Pleatco PA55 Hayward Easy Clear C550 open w molded gasket Unicel C 7455
Pleatco PA55 Hayward Easy Clear C550 open w molded gasket Unicel C 7455
Paypal   US $32.98
Pleatco PXST100 Hayward X Stream CC100 open w molded gasket Unicel C 8311
Pleatco PXST100 Hayward X Stream CC100 open w molded gasket Unicel C 8311
Paypal   US $50.98
HAYWARD STAR CLEAR II 2 FILTER COVER GASKET CX800F
HAYWARD STAR CLEAR II 2 FILTER COVER GASKET CX800F
Paypal   US $8.99
Pleatco PA75 Hayward Star Clear C750 open w molded gasket Unicel C 7676 F
Pleatco PA75 Hayward Star Clear C750 open w molded gasket Unicel C 7676 F
Paypal   US $42.98
Pleatco PA100 Hayward Star Clear II C1100 open w molded gasket Unicel C 8
Pleatco PA100 Hayward Star Clear II C1100 open w molded gasket Unicel C 8
Paypal   US $55.98
Hayward SP740DE 2 Multiport Valve Gasket  SPX740D
Hayward SP740DE 2 Multiport Valve Gasket SPX740D
Paypal   US $12.95
Hayward SX180HG Drain Cap Kit w Gasket For Pro Series Swimming Pool Filter
Hayward SX180HG Drain Cap Kit w Gasket For Pro Series Swimming Pool Filter
Paypal   US $10.99
Hayward C500 or C250 Star Clear Cartridge Filter Parts
Hayward C500 or C250 Star Clear Cartridge Filter Parts
Paypal   US $16.92
Hayward Perflex Diaphragm Gasket ECX1105 G 348 9
Hayward Perflex Diaphragm Gasket ECX1105 G 348 9
Paypal   US $34.99
Hayward Vari Flo SP0710 Valve 5 Spoke Seat Gasket SPX0710XD Go Kit 10
Hayward Vari Flo SP0710 Valve 5 Spoke Seat Gasket SPX0710XD Go Kit 10
Paypal   US $23.99
SP710X D GASKET VALVE SEAT SPIDER HAYWARD BACKWASH
SP710X D GASKET VALVE SEAT SPIDER HAYWARD BACKWASH
Paypal   US $12.95
Hayward Pool Flush Vacuum Plug with Gasket 15 SP1022B
Hayward Pool Flush Vacuum Plug with Gasket 15 SP1022B
Paypal   US $5.49
HAYWARD C500 C250 STAR CLEAR CARTRIDGE FILTER GASKET
HAYWARD C500 C250 STAR CLEAR CARTRIDGE FILTER GASKET
Paypal   US $11.99
Hayward STAR CLEAR Filter Dome CX250C Gasket CX250F
Hayward STAR CLEAR Filter Dome CX250C Gasket CX250F
Paypal   US $94.50
Hayward Vari Flo Pool Valve Seat Gasket 6 Spoke SPX0710D
Hayward Vari Flo Pool Valve Seat Gasket 6 Spoke SPX0710D
Paypal   US $9.95
Hayward Products Key Cover Assembly Gasket SPx0710XD
Hayward Products Key Cover Assembly Gasket SPx0710XD
Paypal   US $13.50
HAYWARD PRO SERIES FILTER DRAIN CAP GASKET SX180G
HAYWARD PRO SERIES FILTER DRAIN CAP GASKET SX180G
Paypal   US $2.99
Hayward Perflex EC30 Diaphragm Gasket ECX1039 Genuine Hayward Part for DE Filter
Hayward Perflex EC30 Diaphragm Gasket ECX1039 Genuine Hayward Part for DE Filter
Paypal   US $28.99
HAYWARD STAR CLEAR II FILTER LID GASKET CX800F
HAYWARD STAR CLEAR II FILTER LID GASKET CX800F
Paypal   US $6.99
Hayward SPX1500H Power Flo pump housing gasket
Hayward SPX1500H Power Flo pump housing gasket
Paypal   US $6.99
Hayward Pool Sand Filter Drain Cap Gasket SX200Z9 ^
Hayward Pool Sand Filter Drain Cap Gasket SX200Z9 ^
Paypal   US $4.95
Hayward Selecta Flo Pool Valve Seat Gasket SPX0740D
Hayward Selecta Flo Pool Valve Seat Gasket SPX0740D
Paypal   US $19.95
Hayward Perflex Pool Filter EC40 EC50A Diaphragm Gasket ECX1003 ^
Hayward Perflex Pool Filter EC40 EC50A Diaphragm Gasket ECX1003 ^
Paypal   US $59.95
O 176 Hayward Valve 6 Spoke Spider Gasket SPX0710D
O 176 Hayward Valve 6 Spoke Spider Gasket SPX0710D
Paypal   US $10.00
Hayward Vari Flo Gasket Valve Seat 5 Spoke SPX0710XD
Hayward Vari Flo Gasket Valve Seat 5 Spoke SPX0710XD
Paypal   US $11.99
GASKET VALVE SEAT SPIDER HAYWARD BACKWASH SP715 D
GASKET VALVE SEAT SPIDER HAYWARD BACKWASH SP715 D
Paypal   US $25.95
Hayward Sand Pool Filter Drain Pipe Assembly with Cap Gasket SX200EB
Hayward Sand Pool Filter Drain Pipe Assembly with Cap Gasket SX200EB
Paypal   US $39.95
Hayward Perflex EC40AC EC50AC Pool Filter Diaphragm Gasket ECX5000G
Hayward Perflex EC40AC EC50AC Pool Filter Diaphragm Gasket ECX5000G
Paypal   US $64.95
Hayward Perflex EC30 Diaphragm Gasket ECX1039
Hayward Perflex EC30 Diaphragm Gasket ECX1039
Paypal   US $29.99
G 5108 6 SPOKE GASKET VALVE SEAT SPIDER HAYWARD BACKWAS
G 5108 6 SPOKE GASKET VALVE SEAT SPIDER HAYWARD BACKWAS
Paypal   US $9.95
Hayward Cyc Locknut Fitting with Gaskets Return Fitting SP1023G
Hayward Cyc Locknut Fitting with Gaskets Return Fitting SP1023G
Paypal   US $10.00
Hayward GM600 6 Way Pool Valve Seat Gasket GMX600G ^
Hayward GM600 6 Way Pool Valve Seat Gasket GMX600G ^
Paypal   US $24.95
HAYWARD SUPERPUMP DIFFUSER GASKET SPX1600R
HAYWARD SUPERPUMP DIFFUSER GASKET SPX1600R
Paypal   US $2.99
HAYWARD SPX1408C RETURN FITTING GASKET
HAYWARD SPX1408C RETURN FITTING GASKET
Paypal   US $3.99
HAYWARD SPX1485C GASKET FOR OLF STYLE ELBOW S 200 S240 SAND FILTER
HAYWARD SPX1485C GASKET FOR OLF STYLE ELBOW S 200 S240 SAND FILTER
Paypal   US $3.49
HAYWARD ABOVE GROUND RETURN FITTING GASKET KIT 2 GASKETS AND 1 SLIP WASHER
HAYWARD ABOVE GROUND RETURN FITTING GASKET KIT 2 GASKETS AND 1 SLIP WASHER
Paypal   US $8.50
HAYWARD SUPERPUMP HOUSING GASKET SPX1600T
HAYWARD SUPERPUMP HOUSING GASKET SPX1600T
Paypal   US $4.95
HAYWARD CX250F STAR CLEAR CARTRIDGE FILTER HEAD GASKET
HAYWARD CX250F STAR CLEAR CARTRIDGE FILTER HEAD GASKET
Paypal   US $15.50
HAYWARD ECX1039 DIAPHRAGM GASKET FOR EC 30 DE FILTER
HAYWARD ECX1039 DIAPHRAGM GASKET FOR EC 30 DE FILTER
Paypal   US $27.95

Hayward Gasket
Pool Sand filter backwash question?

After I backwash my pool filter and switch it back to filter, dirty water and sand come out of the returns in the pool.

I have a sand filter with a Hayward multi-port valve on top to change filter operation and a 1.5 HP pump. I always turn off the pump when switching the valve around. I have tried the rinse setting before returning to normal filter mode and it still does the same problem. I recently replaced the spider gasket and the top portion of the multi-port valve and handle.

It's good that you switch off the pump when swapping valve positions. Not doing that does blow the "spider" key stem gasket. You should use rinse yes. Why you're getting what you see can be one of two things.
1/ The sand bed is saturated and you haven't backwashed to clear and rinsed well enough.
2/ If your multiport is ok ( you replaced the key stem gasket,,,you would know if it was deformed by your heater if you have one) I would suspect the laterals at the bottom of the filter tank. If the filter wasn't drained properly at closing or if the filter is old, the laterals may be cracked or the hub is. If it's an older filter, the laterals may even be worn to the point that the slits in them are now big enough to let sand through and not just water.
That's it. Sand filters are pretty basic. It's one of the two. It won't be the stand pipe between the laterals and multiport unless you abused the heck out of it during the multiport refit and cracked it. Hayward's plastic is what I would call the most robust there is. It would have been tough to do unless you were on a mission.

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