Par Pressure Switch location

[skinners1]

1985 61MY 3/4 full warning lights all 4 illuminate constantly. Trying to locate the par pressure switch. I can see the location where the tube exits the holding tank but because of the location (behind the aft generator) I can’t get to it to trace the tube.I have checked all hatches in generator room, forward bilge area and starboard bilge area with no luck…The search continues

[firbanks]

On my 67 cmy, the holding tank is the farthest forward tank. Port side forward of the forward generator (almost to the fwd bulkhead) is where the copper tube protrudes to a diaphragm pressure switch. A bit inboard of the stringer / shelf for the compressor / condenser skids. Sam’s has replacement tubes and pressure switches.

[jmooney]

One our 61 MY , the switch is in the forward bilge , aft bulkhead, upper starboard side .

[skinners1]

On my 67 cmy, the holding tank is the farthest forward tank. Port side forward of the forward generator (almost to the fwd bulkhead) is where the copper tube protrudes to a diaphragm pressure switch. A bit inboard of the stringer / shelf for the compressor / condenser skids. Sam’s has replacement tubes and pressure switches.

Thank you…. I have been all over/under the generator room to no avail. I can locate the tube exiting the tank (again located just aft of the aft generator). With limited access between generator and aft bulkhead I can trace the tube about a foot only…. It appears to run along the bulkhead towards starboard side and then I lose it…. I have checked the mid head sump area, starboard bilge, all cabinets in washer/dryer area with no luck. Stairs from lower companionway to “office” formerly crew mess are solid, no storage. Possibly in the washer/dryer access area which you enter from under former crew galley table? I have been in there a couple of times and don’t recall seeing anything, but at the time wasn’t looking for it either.

[skinners1]

One our 61 MY , the switch is in the forward bilge , aft bulkhead, upper starboard side .

I will check there…. Thank you

[skinners1]

One our 61 MY , the switch is in the forward bilge , aft bulkhead, upper starboard side .

BINGO, JACKPOT, you are the BOMB!!! Unfortunately it disintegrated (Bottom was rusted out) when I touched it. Any thoughts on locating a replacement?

[skinners1]

I do have a WEMA sender and gauge installed to monitor the system which works great. Just my OCD says if it's on the boat, I want it to work, sooooo I have 4 lights in heads that stay on all the time (of course bulbs are removed currently) so we are not in the "Red Light District"...

[jmooney]

BINGO, JACKPOT, you are the BOMB!!! Unfortunately it disintegrated (Bottom was rusted out) when I touched it. Any thoughts on locating a replacement?

The exact switch is no longer available, Sam’s has a replacement .

[jmooney]

I have installed a Maretron ultrasonic tank monitor on top of the holding tank by taking a plug out of the tee that hooks to the pump out hose . Works great. I still have the 3/4 light working, but the monitor lets you see where you are as the tank is filling. Also you can push the tank after the light comes on , but stop short of over filling.

[SKYCHENEY]

I do have a WEMA sender and gauge installed to monitor the system which works great. Just my OCD says if it's on the boat, I want it to work, sooooo I have 4 lights in heads that stay on all the time (of course bulbs are removed currently) so we are not in the "Red Light District"...

There is a fuse for those lights. You have to open the 32v ships service. Its inside the panel above the breakers. You'll see it on your schematics.