Just changed the sand in my old-style Hayward S200 filter (the kind with the bolts all the way around). When I reassemble it do I need to use any kind of gasket sealer or silicone between the 2 domes? I am going to replace the O ring while in there.
Ask the Pool Guy Changed status to publish May 14, 2025
As long as it goes back together well you shouldn’t need to use any additional sealer or silicone. If you feel something is needed, a waterproof flexible sealant like Boss 801 would be the only one to consider.
Ask the Pool Guy Changed status to publish May 14, 2025