I need to pass 3/4 inch PEX A pipe through a cinder block foundation wall, is drilling a 1 1/8 inch hole sufficient? Do I need to use an insulator around the pipe as it goes through the cinder block to prevent damage to the pipe from friction or movement?
3/4 inch PEX A pipe through Cinder Block
- Thread starter Aaronac8
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I’d sleeve it with 1” pex and drill a 1.25” hole through the wall. The OD of 1” pex is 1 1/8”
I like the idea of this, but the OD of 3/4 inch PEX A is at least 0.875 (possibly more with the compression ring) which would not fit in the 1 inch PEX A (ID of 0.875)
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Why would you put a joint inside the sleeve ? The Od of 3/4” pex is 7/8 and the ID of 1” pex is 1”. I do it occasionally and it works great.
Good luck to you
Thanks for your help Twowaxhack. I was not trying to be an ass, but when I referred to this page, the measurements did not make sense for placing the 3/4 inch PEX in the 1 inch PEX tube.
I am installing a Woodford Model 19 12", 3/4" Expansion PEX Inlet Anti-Siphon Wall Faucet w/ Metal Handle. It is going through 12 inch cinder block with 2 inch thick walls on either side. My 3/4 inch "T" off my main water line is very close to the cinder block, so the compression ring will need to be in the cinder block space. I plan on placing a 3/4 in. PEX Tubing Insulator Cap in the cinder block wall near the "T", so the PEX will not rub against the cinder block and the wall faucet will have a 2 inch extender, like this. Therefore, the compression ring will be just outside the 1 inch long 3/4 in. PEX Tubing Insulator Cap.
The reason I am doing all of this is because who ever installed my previous hose bib did not slant it downward and the shut off valve feeding this bib had a cracked bonnet nut.
Will post pictures when done.
I am installing a Woodford Model 19 12", 3/4" Expansion PEX Inlet Anti-Siphon Wall Faucet w/ Metal Handle. It is going through 12 inch cinder block with 2 inch thick walls on either side. My 3/4 inch "T" off my main water line is very close to the cinder block, so the compression ring will need to be in the cinder block space. I plan on placing a 3/4 in. PEX Tubing Insulator Cap in the cinder block wall near the "T", so the PEX will not rub against the cinder block and the wall faucet will have a 2 inch extender, like this. Therefore, the compression ring will be just outside the 1 inch long 3/4 in. PEX Tubing Insulator Cap.
The reason I am doing all of this is because who ever installed my previous hose bib did not slant it downward and the shut off valve feeding this bib had a cracked bonnet nut.
Will post pictures when done.
