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Old 11-16-2011, 08:10 AM   #15
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It seems that all of my leaks have not involved the pipe, but definitly the crimp and or fittings!
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Old 11-16-2011, 08:40 AM   #16
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crimping tool at Lowes is $40. Crimps come in a 10 pack for about 5 bucks. most fittings are around 2-3 bucks. Sharkbite fittings are around 6 to 8 bucks each.
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Old 11-16-2011, 11:05 AM   #17
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Bill, thanks for the $ update. Hopefully getting started on fittings this Sunday, 6 day week for me this time around.
Thanks, Derek
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Old 11-16-2011, 11:49 AM   #18
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Sharkbite...no commission, here, just an alternate comment...
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Old 11-16-2011, 10:18 PM   #19
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When I'm able to do the Lowes/Home Depot run this weekend, I'll be sure to look at everything that is available for piping replacement. Have a guy at a plumbing store who's offered 'attractive' pricing on replacing all of this, as well as his own personal help, lol. Think he wants a good up-close look at the Airstream!
Thanks, Derek
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Old 11-17-2011, 08:08 AM   #20
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Anybody got some pics of the PB tubing. I think mine has a mix of PEX and PB tubing as well as some reinforced Tygon tubing. I would like to replace all of it with PEX. I have never hooked the water system to city water because I am afraid the jury rigged plumbing will let go and flood the place. Is the PB tubing smaller in diameter than PEX. Some fittings have strange plastic compression fittings on them.

I did some research and it looks like there PB fittings attach with crimp rings much like PEX. What I don't like is having to have several different types of fittings none of which use the same tools. I don't like seeing hose clamps on plastic tubing unless it is tygon and I really don't want any Tygon in the high pressure side of anything.

Perry
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Old 11-17-2011, 09:45 AM   #21
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Pex and the gray stuff in the Airstream have the same ID. My Airstreams have a mix of 3/8 and 1/2 inch tubing. The crimp tool I bought at Lowes works on both sizes. The stainless steel crimp on clamps work. Screw on hose clamps do not work well. The sharkbite I used works well. But I got more faith in the metal fittings crimped on and they are cheaper and take less space. The suction side of the pump uses tubing and hose clamps. I replaced a bit of it with Pex also when I changed the pump.
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Old 11-17-2011, 10:12 AM   #22
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The problem is that the PEX and the gray stuff (why can't you have gray PEX) is the outer diameters are different so you can't use the same grimper. I have a grimper that you use with a vise grip to grimp the PEX rings with. The same tool won't work on PB since the OD is smaller.

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Old 11-17-2011, 10:18 AM   #23
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This is what I am using...
PEX/Sharkbite piping for pressure supply... not shown is the Red Pipe I am using for Hot water supply.. White ABS is for water tank non pressure system.
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Old 11-17-2011, 10:32 AM   #24
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Quote:
Originally Posted by Keyair
This is what I am using...
PEX/Sharkbite piping for pressure supply... not shown is the Red Pipe I am using for Hot water supply.. White ABS is for water tank non pressure system.
Steve, where did you get your supplies? Lowes and Home Depot do not carry this in the bay area...must be against building codes here...earthquakes and nannys ya know!
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Old 11-17-2011, 10:42 AM   #25
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Local Home Depot, but Lowes also had it.
Maybe order online?

I agree with Bill_M about the neatness and cost of this system... The push ones would be cool, and is awesome for stuff you might want to replace or remove, but the cost of each fittiing is like 5 times the cost of the barb and crimp fitting... I costed them!
Whilst the Crimp tool is a large expense, you soon save that. Mine was like $50.
Also, make sure you buy a hose cutting tool... looks like a shear, snd cuts the pipe clean and straight.
The only place I have the push fittings is on my Hot water heater, and that was because i had to fix a leak on the way back from KS, on the maiden voyage, and had no tools.

Biggest problem I have had with the PEX so far is I could not find the threaded fittings to attach to the existing stuff.
Like the Water hose reel... That has a 3/8" threaded 90deg fitting, and could not find it or even an adaptor to get to the threaded 1/2" PEX fittings, so I had to reuse the original... Its a very snug fit, and I dont think it is going to be a problem, but I figured if it breaks or leaks while I am hooked up using city pressure, its below the floor, and will just flow out of the drain holes in the utility compartment.
I will not be doing that above floor!
Also, whilst the PEX pipe fitted over that original PB barb, it was a very tight fit, and expands the OD of teh PEX pipe a bit.. as a result I could not get the PEX crimp ring on... I used a worm clamp.
I think you can see what I did in this pic... RH side of hose reel..

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Old 11-17-2011, 11:54 AM   #26
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But you can use the same crimping tool on the gray, the pex, and both 3/8 and 1/2 in tubing. $39 at Lowes. It uses the stainless steel crimp on clamps. The tool grips the ears of the clamp and crimps it. The tool does not go around the tubing. So it works on both sizes. The clamp has a good range of OD that it will close around. Only problem is that it takes about a 10 inch wide space to work the handles in. And some force.
Neither Lowes or Home Depot carrys a wonderful selection of Pex fittings. And they carry different ones so you have to check both stores. I was able to get the valves and faucet connectors I needed with a few trips. Might have had to use a straight fitting instead of a right angle one but got it all in and made a wh bypass and street connection onkay.
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Old 11-17-2011, 12:01 PM   #27
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For some reason, I like the other type clamp because I think it creates a more even clamping force all the way around the tubing. So a 1/2 pinch type collar works on 1/2" PEX and 1/2" PB?

Perry
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Old 11-17-2011, 12:24 PM   #28
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Ok Bill, you are using the type with ears?
Did not spot that... will have to check into those!
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