
Quick overview
- Genuine Waterway Waterway part 805-0000, the o-ring specified for the Crystal Water tank.
- Crystal Water DE Listed as the tank o-ring for Waterway Crystal Water DE filters.
- Crystal Water cartridge The same tank o-ring is used on Waterway Crystal Water cartridge filters.
- Seals the tank halves Sits between the lid and the body where the clamp band pulls them together.
- Change it with the filter service An o-ring that has taken a set will weep once the tank is reassembled.
- Small part, big leak A worn tank o-ring is the usual cause of water running down the outside of the filter.
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Product details
The Waterway 805-0000 is the tank o-ring for Crystal Water filters. It is listed for both the Crystal Water DE filters and the Crystal Water cartridge filters.
What it seals
The o-ring sits in the groove between the two halves of the filter tank, where the clamp band pulls the lid down onto the body. Filter pressure works against that joint every time the pump runs, and the ring is the only thing keeping the water inside.
When to change it
Look at it every time the tank is open. A ring that has flattened, hardened, cracked or will not sit back down in its groove should be replaced. Clean the groove out before fitting the new one, and lubricate it with a pool approved lubricant so it seats evenly as the band is tightened.
| Brand | Waterway |
|---|---|
| Manufacturer part number | 805-0000 |
| UPC | 806105194749 |
| Type | Tank o-ring |
| Part type | Pool filter part |
| Fits | Waterway Crystal Water DE filters and Waterway Crystal Water cartridge filters |
| Shipping weight | 0.45 lb |
| Ships | Parcel |
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