terryd wrote:
Hi to all
My fresh water pump comes on about every 4/5 min, it does not come on high like when a tap is opened it comes on at a very low setting, you can hardly hear it. noticed it most at night while quite, will comes on low and run until the system reaches pressure. I pulled the clothes draw out and looked and felt inside no leaks were found. I looked at all the lines I could see and found no leaks. Has anyone experienced this and does anyone know how to get access to this pump, it is buried beside the fresh water take in the bow of the boat under the bed.
Also my waste water pump comes on for about every hour. I also checked for leaks and found none.
By what do you mean waste water pump? The one in sump box, in the middle of the cabin deck floor? That's the shower/sink sump box. Or do you mean some other pump? I don't have a gray water system so I have no idea if there's a pump for it or not. Or do you mean the vacuum pump for the vacu-flush toilet?
I believe my fresh water pump has only one speed. If it's coming on and you don't have any faucets open then yours is probably leaking. Be *certain* that all spigots are completely turned off. Including the one back in the transom locker. Galley sink, head sink, shower, cockpit sink and transom shower are the standard spigots. The water lines run from the tank in the bow, along behind the starboard galley and head, back to the engine room and then around the swim platform to the port side cockpit sink. You'll want to get a look at all those places to see where you've got a leak.
And to bug hunt for strange pump noises it's sometimes helpful to disconnect various pumps. There are bilge pumps in the mid-cabin locker (with the strainers) and then back in the main engine room. There's another one inside the shower sump box. They all have a nearby disconnect fitting on their electrical line. Note how much water is near each of them and see if it gets any higher while you have the pump disconnected. Obviously you don't want to leave them disconnected. Too many boats sink each year because of faulty bilge pumps, so don't leave the boat without working pumps. The fresh water pump has it's own breaker, leave it off and see if that eliminates the noise.
At some you're likely to find a leak. Either that or there's a very small chance the wet end of the pump is broken and needs rebuilding. Most pumps have a kit for this purpose. Do not buy a whole new pump just for that.
I've commented elsewhere on this forum regarding access to the fresh water pump. Look through the threads I've posted. On the newer 348 series (2008+ I think) it's easier to get to it from the top (under the mattress). The older ones require removing the cabinet face under the bed.
So, can you better explain which devices are actually making the noises? That'll help point you in the right direction for troubleshooting.