Shopsmith Forums

dusty wrote:

bill50cal wrote:on the PVC i see people use it for air lines. even though it will work it is a no no in a commercial environment. i would highly recommend against it in the home also. i have seen it burst along chasing cracks it the fittings.

I don't KNOW this but I assume that if it cracks when being used for air lines that happens because the air pressure is/was greater than anticipated water pressure.

IF that is the caseI consider ir not a product deficiency but rather the results of misuse. That happens a lot, misuse that is.....and then blame the product!

AMEN!

yes using PVC for air lines is a miss use. if you try to use it in a commercial shop the inspector WILL shut you down. also using it for hot water is a miss use hot requires CPVC.

bill50cal wrote:yes using PVC for air lines is a miss use. if you try to use it in a commercial shop the inspector WILL shut you down. also using it for hot water is a miss use hot requires CPVC.

Am I mistaken. I installed red and blue PEX in an RV . Red for hot water and blue for cold. I also used a small amount of white PEX for the input lines to the water heater and storage tank. Is this all wrong. If it is, so are many installations in new RVs being sold today.

PEX vs PVC

you are OK. the joke is red and blue is pex for dummmys but it sure makes it easy to tell which line you are working on.

PEX is my goto system. I even use the push connected fittings. I just re-plumbed the house from street to facet(s) in PEX a few years ago. All push connected and all perfect so far.

My vote is PEX also.[/quote]

Local code on Ft Smith AR doesn’t allow push connected fittings (shark bite?) if they are not accessible. They made me add an access panel in case of a leak. But I have used them without problems.

I got really lazy when I moved the compressor to the other end of the farm shop (where I don't work, just storage) because of the noise and needed a line to the tire changer and to my main hose to reach around the shop and to the outside. I just used air hose... (shrug) It's been working fine for years. I did fail to run it along a board to support it at a draining grade and if I bump it it can freeze in a dip in real cold weather. Not really a problem but I do plan to install a support strip under it when I change to a bigger tank and a dryer section this spring.
I use a lot of air tools in that shop but in the wood shop I just use my air nailer compressor. It easily keeps ahead of any use in the wood shop.


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I can voucher for PEX freezing and not bursting. My wife and I built a new house 5 years ago and PEX is used. One part of the house was insulated incorrectly and during a -20 spell the hot and cold water lines froze solid. When we opened up the cavity and got water lines thawed out there was no damage. The pipes had expanded to accommodate frozen water and went back to normal size afterwards. If that would have been copper it would have split and we would have had a flooded basement.

I’ll take PEX anytime.