I haven't yet been able to find another good installer (mine disappeared shortly after the original build in 2015), so since I am somewhat technically inclined I took on all of the maintenance from the beginning and want to do some updates to our simple system.
Currently I have 1.5" plumbing to the pump inlet (Superflo VS) - no isolation valve - , 1.5" directly to the existing Quad DE 100 (via reducer), 2" from Quad DE 100 to the heater and out to the Intellichlor, then that's distributed back via a series of valves to the 1) stair jets, 2) water feature and 3) pool return jets by 1.5" lines.
I am adding a heater bypass valve (manual valve for now, I could spring for an Intellivalve at some point) and that portion is all 2". (This bypass is being added more to improve flow for a soon to be enlarged waterfall feature than anything else - covered by another post on TFP.)
No MPV was put in originally because the Quad100 (P/N 188594) is oversized (and I pre-filter with a sock in the weir's filter basket) so it can run all summer without needing a backwash. However, with no MPV and just a pre-filter exit for waste water discharge, and no way to backwash without physically reversing the filter unions, it makes cleaning old DE into a DE filter sock difficult at season end (we're not allowed to discharge DE into the street sewers of course and I find the DE filter sock to be a good option to decanting DE in a garbage can....).
So I am thinking to add a MPV to more easily be able to do the season end DE disposal and I don't entirely trust the slide valves (here they are the same price as MPVs)
I wanted to ask if the 261055 is the correct MPV for the older Quad100 (188594) and if I should replace the 1.5" from the pump to the MPV with a 2" pipe and union ?
Any other suggestions you folk might suggest since I'm in the process? (I will be replacing the heater manifold o-rings and seal this year too.). Thank you in advance, I always learn so much here!
Currently I have 1.5" plumbing to the pump inlet (Superflo VS) - no isolation valve - , 1.5" directly to the existing Quad DE 100 (via reducer), 2" from Quad DE 100 to the heater and out to the Intellichlor, then that's distributed back via a series of valves to the 1) stair jets, 2) water feature and 3) pool return jets by 1.5" lines.
I am adding a heater bypass valve (manual valve for now, I could spring for an Intellivalve at some point) and that portion is all 2". (This bypass is being added more to improve flow for a soon to be enlarged waterfall feature than anything else - covered by another post on TFP.)
No MPV was put in originally because the Quad100 (P/N 188594) is oversized (and I pre-filter with a sock in the weir's filter basket) so it can run all summer without needing a backwash. However, with no MPV and just a pre-filter exit for waste water discharge, and no way to backwash without physically reversing the filter unions, it makes cleaning old DE into a DE filter sock difficult at season end (we're not allowed to discharge DE into the street sewers of course and I find the DE filter sock to be a good option to decanting DE in a garbage can....).
So I am thinking to add a MPV to more easily be able to do the season end DE disposal and I don't entirely trust the slide valves (here they are the same price as MPVs)
I wanted to ask if the 261055 is the correct MPV for the older Quad100 (188594) and if I should replace the 1.5" from the pump to the MPV with a 2" pipe and union ?
Any other suggestions you folk might suggest since I'm in the process? (I will be replacing the heater manifold o-rings and seal this year too.). Thank you in advance, I always learn so much here!
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