spa_repair_guy

"1. Is the 4" metal mesh good enough or is it best to use 1/2" rebars throughout the slab? Some concrete contractors say no mesh or rebar is necessary, others say mesh is enough, and others recommend the rebar which provides the most strength. " 1/2" metal rebar requires a minimum of 3" of concrete on both sides. You will not be able to make that happen with certainty. Use the 4" mesh and/or fiber-mesh. Your slab of 5 5/8" to 6" should be flat and level under the spa. 2. Every major spa manufacturer says that you should connect all the metal inside the slab to a bonding wire which is then supposed to attach to the motor or something else metal in the tub. Is this true? I live in WA where some electricians say they never ground the slab since the GFCI is protecting you already. While other electricians are recommending it since that is what the code says. Ground any metal objects that you can grab from the spa like handrails. Your spa should be GFCI protected with the approved cuttoff box. You MUST follow your local codes regardless of my opinions. SRG

If it was a positive addition to this fourm I'd vote to let it ride. Both mentioned in this thread need to be seriously considered. My answer: Ban I've done it before and I can do it again.

Go with the 6" cover from RHtubs http://www.extreme-spa-covers.com/