After 15 years of service our MANABLOC assembly started leaking. The manufacturer does not recommend disassembling the unit as all of the rods are tensioned to a specific torque. After removal I could see that the plastic was cracked in several locations and one of the outlet adapters were starting to fail.
The original 12 port unit was not readily available and was significantly higher in price, when I found one. I went with a 14 port ½" compression connection model. The supply/outlet adapters, supplied with the unit, are all brass and "O"ring sealed. They are a considerable improvement over the original factory installation. The new unit was about 1" longer body wise, but actually shorter overall with the brass adapters. All of the ½" Pex connections were crimped.
The blue hose in the picture is the potable water overflow.
Bob, for reference where did you get it, part # and cost
John H
Pexsupply.com
14 Port Compression MANABLOC Package (NPT Supply)
SKU:NPTS-36144
cost 142.00
You need the compression nut wrench as well. I think that was 12.00ish.
Web link for all the Manablocs MANABLOC , Vanguard MANABLOC , MANABLOC PEX Plumbing , MANABLOC System - (http://www.pexsupply.com/MANABLOC-PEX-Plumbing-System-760000)
Web link for the one Bob and Faith used NPTS-36144 - Viega NPTS-36144 - 14 Port Compression MANABLOC Package (NPT (http://www.pexsupply.com/Viega-NPTS-36144-14-Port-Compression-MANABLOC-Package-NPT-Supply)
Michelle
ETA - is this the compression nut wrench you used? 50631 - Viega 50631 - MANABLOC Wrench For Compression Lock-in Nuts (http://www.pexsupply.com/Viega-50631-Manabloc-Wrench-For-Compression-Lock-in-Nuts-8049000-p)
Is that blue hose that goes down through the floor your re-located fresh water tank overflow?
Re-routing overflow water off the rear bulkhead is always a good idea.
Thanks for the info i will file it for the future
Al
The blue hose is the relocated potable water tank overflow.
Yes Michelle
That is the wrench we used ;D
We took advantage of four open ports on our Manabloc.
We have a propane hot water tank and changeed the in & out water lines so we can easily bypass the tank and seal it off in case of a leak.
Input to hot water tank comes from a cold-side Manabloc tap. Output from hot water tank goes to a hot-side tap. And another hot-side tap is directly connected to a cold-side tap.
Turn off in & out tap valves to isolate hot water tank. Open the directly connected tap valves to bypass the hot water tank for winterizing or for any other reason.