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Thanks for the reply. He showed me the mechanism used to get the liner to the repair spot. About a 4' tube 2.5" in diameter that you wrap the liner around and feed it down to the fix location (which is about 71' from the cleanout). That tube which is basically a balloon is then inflated to set...

I've had 2 guys out to scope my 3" ABS sewer line to see about fixing some roots that look to be dropping in from a T that had been capped with rubber instead of ABS. One is telling me he'll hydrojet then can insert a section of liner 4' long to plug that up. The other is telling me he's never...

In your opinion, can this type of set up be comparable to have a dedicated return line?

They confirmed I need to T off the supply line and into the recirc inlet then put a check valve after the T going up to the main inlet to prevent back flow. They sent me the Technical Bulletin and I attached it here. Am I wrong in assuming that if there is a Technical Bulletin on the Grundfos...

Mine is very accessible right inside my garage but I may rethink that one later too. Looks like I didn't do enough thinking in advance on this project:)

Yeah I'm thinking the return line and get it right. Thanks for all the insight, was very helpful.

Not hard to get a return line in there. It was put to me by my plumber that it was unnecessary and this new unit and valve would accomplish the same thing and save me the cost of the return line which was upwards of $1,500 so it seemed like an easy decision at the time.

Thanks again and to clarify, I'm not utilizing the Grundfos pump, only the bypass valve. Was told Navien's pump is sufficient and takes the place of any outside pump. I'm on hold w/ level 2 tech support now to get confirmation on a couple things.

So I called Navien and they said in order for that set up to operate properly, I need to T off the supply line going into the unit, and run that into the recirc inlet (need a check valve in that run also) then set the 2 way valve to External. Tech said the way it is now there is no...

Hello, Just had this unit installed and the plumber suggested going with a Grundfos bypass valve at the farthest fixture to avoid the cost putting in a return line. Said it would work just as good. We're getting hot water quicker than before but still over a minute at some fixtures. What...