every year
Check the sand surface for caking
Check before you act. This one is driven by what you measure, not by the date. Check the top of the sand bed for crusting or caking — remove about an inch of media if the surface has hardened
The failure nothing warns you about Sand does not wear out so much as it channels. Oils and minerals bind the top layer into a crust, water finds a path through it, and the filter quietly stops filtering while the gauge still looks normal. ## What to do 1. Stop the pump and release the pressure. 2. Open the top of the tank and look at the surface of the sand. 3. It should be loose and level. Crusting, caking, or a hard top layer is the problem. Hayward's own troubleshooting for short filter cycles is direct about the fix: remove about an inch of sand if it has crusted.
What it takes
S180T
Replace all 150 No. 20 silica sand (0.45-0.55 mm)s — this model takes 150. as needed.
Quantity is POUNDS of media, not item count. Replacement is condition-driven.
S210T
Replace all 200 No. 20 silica sand (0.45-0.55 mm)s — this model takes 200. as needed.
Quantity is POUNDS of media, not item count. Replacement is condition-driven.
S220T
Replace all 250 No. 20 silica sand (0.45-0.55 mm)s — this model takes 250. as needed.
Quantity is POUNDS of media, not item count. Replacement is condition-driven.
S244T
Replace all 300 No. 20 silica sand (0.45-0.55 mm)s — this model takes 300. as needed.
Quantity is POUNDS of media, not item count. Replacement is condition-driven.
S270T
Replace all 350 No. 20 silica sand (0.45-0.55 mm)s — this model takes 350. as needed.
Quantity is POUNDS of media, not item count. Replacement is condition-driven.
SF90110T
Replace all 26 No. 20 silica sand (0.45-0.55 mm)s — this model takes 26. as needed.
Quantity is POUNDS of media. Intex also accepts glass media at 18.5 lbs for the same charge.
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