89 mid cabin vacuflush wiring

[mrrudely]

Posssibly an odd request
vacuflush system
I am trying to trace the path of the hot wire that goes to the vacuum pump switch at the vacuum tank
I am looking for an easier place to tap into it
I can see that it goes from the switch and disappears into a hole right by the forward shower drain
almost certainly under the shower pan
I have opened up a large area at the bottom of the sink cabinet but no luck
I don't need the schematic as I am looking for the physical wire

thx
rr

[Scott67]

RR,
When replacing all of my sanitary hoses and installing a sump pump, I located those wires on my 1988 Mid-cabin. On mine they run underneath the shower pan as you described, but then went up inside the closet behind the toilet. I had to remove the closet shelves and such to locate them. I actually tied my sump pump into the existing shower drain switch, but at least I found the vacuum switch wires.

Hope this helps!

Now, tell me how you fastened your radar arch panels without visible screw heads!!!

[mrrudely]

thanks for that
I remodeled the head so it is a bit awkward but easy for me to access that area
I have seen the wires for the shower drain switch but not the vacuflush
I will check again

the radar arch was a project but not too difficult
the side panels were not easy to remove because of all the caulking and I think I remember a
hidden screw under the widow frame rubber molding

I glued a thin piece of plywood behind the top of the panel creating a lip (after upholstery)
I then epoxied a block to the radar arch to which I could screw into
I believe the panels are stiff enough and did not need anything in the middle

For the small curved parts I think I got lucky as they are a little springy so with the
help of some velcro they just snapped into place for the most part

For the top part all the attachments are behind the led lights
Maybe a lip at the ends like the side panels
I believe I glued some wood stringers lengthwise to stiffen the panel (probably as close to the outer edges as possible)
I epoxied wood blocks to the radar arch behind each light
I glued wood blocks to the panel where each light went
the blocks were fashioned to allow for the thickness of the lights and room for the wires to pass

let me know if you have any questions

rr

[mrrudely]

behind the toilet I find wires for the shower drain pump and switch
and wires going to the vacuflush level lights
but nothing for the vacuflush pressure switch
any other thoughts?

[Scott67]

RR,
I'm going down to the boat this afternoon. let me doublecheck the vacuum switch wiring route and get back to you. I'll take pics if I can.

Sorry for the delay in replying, but thank you for the information regarding the radar arch.

[Scott67]

RR,
The vacuum switch wiring definitely goes underneath the shower pan and ends up going through the closet (underneath the bottom shelf). It does however, go under the sink vanity first. It ends up going up the side of the hull and then runs behind the removable bolster board (at least on mine) on it's way to the DC panel.

1.jpg (37.7 KiB) Viewed 4531 times

2.jpg (38.85 KiB) Viewed 4531 times

[mrrudely]

thanks for the pics
but I cannot tell where I am looking
can you give me some reference?
I don't know what the bolster board is
thx
rr

[Scott67]

thanks for the pics
but I cannot tell where I am looking
can you give me some reference?
I don't know what the bolster board is
thx
rr

mrrudely,
I'm sorry for the delay in response and for the non-informative pics, I know that can be frustrating. In any case if this issue still exists, the first pic is aiming at the deck underneath the bottom shelf (shelf removed) in the closet (behind the toilet). That black wire loom contains the wires you are speaking of in my set-up. The second pic is the "grey" wire in the same location as first pic, but out of the loom on it's way up and over to the DC panel.

Hope this helps or perhaps you may have found yours already.

[mrrudely]

thanks for that info
I have remodeled the head so some things might be a little difficult
for me to get at, but I will take a look.

I want to install a timed relay so in case of a fault the pump will not run indefinitely.
My original plan was to put it before the vacuum switch
Alternatively I don't see why it wouldn't work just as well between the vacuum switch
and the pump

[Scott67]

thanks for that info
I have remodeled the head so some things might be a little difficult
for me to get at, but I will take a look.

I want to install a timed relay so in case of a fault the pump will not run indefinitely.
My original plan was to put it before the vacuum switch
Alternatively I don't see why it wouldn't work just as well between the vacuum switch
and the pump

Something to think about...when I bought my 10M the vacuum switch (as well as many other items on my boat) didn't work as designed. I had to turn on the vacuum pump at the DC breaker each time in order to flush the head, a real pain! However, once I replaced and rebuilt all things sanitary, I've had no issues. However, since those days, each time I leave the boat I've gotten into a habit of switching off all equipment not necessary at the breakers in case such an instance occurs.

[mrrudely]

I wound up putting the relay between the breaker and the vacuum switch
It was more difficult to do than between the vacuum switch and the pump
but for some reason that escapes me now I though that was a better way.
Bottom line is it works perfectly and no fears of the pump running endlessly.

rr