slief
RC Sponsor
Not sure what walls you are talking about. If you are talking about the walls under the tank where the equipment like the sumps and pumps are, those are not painted. Instead they covered with FRP (Fiberglass reinforced plastic) sheets to protect the underside of the tank and serve as a moisture barrier. It keeps things sanitary looking while also providing a wall covering that will last forever without degrading. Many years back, the walls below the tank were painted but paint and exposed drywall doesn't hold up in that smaller closed environment due to humidity and ends up looking horrible as a result. As such, i would never go back to painted finish below the tank. The FRP is the same kind of stuff that some fiberglass showers are made of and won't degrade over time like paint will. I put that in 6 years ago when I did my sump upgrade and it still looks perfect today. It's also easily cleaned with a wet rag which is nice from a maintenance standpoint. Not only that, but the white finish is also reflective so it maximizes what little light I use below the tank to illuminate things. I use the same material above the tank too in the light soffit as it's not only protective but it helps maximize the tank lighting by reflecting it. The walls on the outside of the tank are now painted a brown color to match the rest of the paint in the surrounding rooms.
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