To alleviate pressure which underground water can build up under the pool shell. It is recommended that a hydrostatic valve & drainage tube are fitted to a main drain. Hydrostatic valve To thread into the bottom of main drain. Made in white ABS with screw and spring in S.S. 1 1/2''.
| CODE | Description | Spare Parts |
|---|---|---|
| 00277 | Hydrostatic valve |