pnwtub

Congrats on your new purchase! Off topic Q - How much did the Altamar cost?

Pool Owner and co., One of the bids i received for a concrete slab mentioned the use of Necon Fiber mesh for reinforcement (instead of metal mesh or rebar). Have you heard of this? Is this fiber mesh a good thing for hut tub slabs? Another question I had was about the size of the slab. If the tub is listed as 7' x 7' in the specs, is it OK to have a slab that is 7' 1/2" x 7' 1/2"? If it was more than a few inches larger than the tub then I was thinking that the steps would not be flush up against the tub. Thanks! Happy New Year!

Thanks for the tips and fast reply Pool Owner. The links were very helpful.

When pouring concrete, should the temperature be above a certain degree? I heard 50 degrees is the minimum, but wasn't sure how meaningful this is. The forecast is 30-39 degrees and the concrete is scheduled to be poured this week. If it's not going to cure properly, i'd rather postpone this work. Thanks in advance for any pointers.

Good stuff, thanks for the advice! Can you help me define "good site preparation and placement of concrete that is done right". For example, some questions i have: 1. Should the ground be flat before the gravel is layed down? I would expect a 4" slab should be 4" all around. If the ground is not flat to begin with then part of the slab may be 3" and other parts may be 4". 2. How many inches of gravel should be used as a base? 3. Should the concrete surface be smooth like a garage floor or rough like a patio? Any other things that make a slab good?

Hello, I'm getting ready to put in an 8x10 6" thick concrete slab and wanted to hear what others have done before I give the green light to the contractor. 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. 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. Thanks for sharing your site prep experiences. pnwtub