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Old 01-26-2016, 12:13 PM   #1
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drainage for a water softener


Guys, I'm planning on installing a whole house water softener. I have a spot in my garage with good access to the incoming water pipe which makes for a good install location, but there's no drain there. The otherside of the wall immediately next to the install location has a drain (a bathroom drain, shower and sink), and I have access to that drain via the crawl space. I went and took a look, and it appears to be reasonably new ABS - i think perhaps 4".

For the water softener drain, I have a thin flexible plastic pipe I need to point to a drain. The softener installation instructions make a point of saying the flexible drain pipe shouldn't be inserted into a drain, instead there should be a 1.5" gap between the water softener drain pipe and the drain. I assume I can modify the 4" ABS bathroom drain in the crawl space somehow to accommodate the water softener drain, but I'm not exactly sure what sort of adapter to install to safely accommodate the water softener draining tube, while maintaining the existing drainage pipe for it's function as a bathroom drain? Would appreciate any advice...

thanks,
Matt
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Old 01-26-2016, 12:39 PM   #2
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you will have to cut in a 4 x 2 y and run the 2 inch into the garage with a trap...then you can put a 4 x 2 coupling on top of the trap to make a small catch basin and then hang the drain line above that..
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Old 01-26-2016, 02:42 PM   #3
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thanks - would this be a good representation of your idea?:
drainage for a water softener-img-126123910-0001.jpg
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Old 01-26-2016, 06:57 PM   #4
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The trap must be at the end of the pipe --with the receptor pipe going verticle directly out of the P-trap.

Most water softener discharge tubes can be run a long way to a drain---
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Old 01-26-2016, 07:28 PM   #5
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And the discharge must have an Air GAP. Unless you enjoy feces in your water.
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Old 01-27-2016, 06:45 PM   #6
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thanks for the input, i've made changes based on your feedback and pasted in a new pic below - does this look ok now? I'm not sure if I would enjoy feces in the water - it sounds intriguing, and i'll give anything a try once. That said, i'm not sure my wife will go for it, so i best plan on the air gap. Is there a device/adapter that helps the softener flexible pipe attach to the end of the rigid pipe, maintaining the gap with a degree of stability, and perhaps even protecting the end of the rigid pipe from capturing other random debris?

drainage for a water softener-img-127163758-0001.jpg
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Old 01-27-2016, 07:28 PM   #7
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like this is proper
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Old 01-27-2016, 09:31 PM   #8
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Air gap fitting


One example:
http://www.homedepot.com/p/Keeney-Ma...B&gclsrc=aw.ds
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Old 01-27-2016, 09:46 PM   #9
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perfect - great info as always - really appreciate it!
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