OK, if this is a dumb question, don't give me too much grief.
The question is whether I need vented loops both before AND after my Electroscan MSD I.
I have a Raritan
PH Powerflush head
and a Raritan
Electroscan MSD. The head
is installed above the waterline, the Electroscan is below the waterline. So my question is really whether the loop between head and MSD is needed.
I've attached four photos:
• illustration from Raritan PH Powerflush manual showing two installations--head above waterline and head below waterline;
of the two vented loops currently in the system;
showing location of the Electroscan--the unused(capped) thru-hull circled in blue is right at the waterline; and
• exterior view showing same thru-hull (this thru-hull has nothing to do with the system; I'm only highlighting it to show the location of the MSD in relation to the waterline).
TO BE CLEAR: I am not installing now for the first time. I installed the system a couple of years ago, and I installed it with two vented loops, one before and one after the MSD. It has been working fine since. I doing some cleaning
to the system and wondered whether it could be simpler/more streamlined. I might replace the hoses, and I might even consider switching to Sch40 PVC.
But my primary question now is whether the two long runs with loops are necessary, in the event that eliminating some of the distance would improve performance (and I don't know whether that would be the case).
manual diagram shows, for an AWL installation
, one vented loop between the head (AWL) and the MSD (AWL); but, for a BWL installation, shows vented loops between the head (BWL) and MSD (BWL). My installation is a combination--head AWL and MSD BWL.
I would keep the vented loop between the MSD and discharge thru-hull. So the question is whether I can eliminate the vented loop between the head and the MSD.
I didn't find an answer in Peggie Hall's book. Thinking maybe peghall might be able to help on here.