plumbing

  1. D

    Catalina 315 Plumbing Schematic

    I have a 2015 Catalina 315 and I’m trying to figure out where the kitchen sink and bathroom drain. I’m assuming it doesn’t go into a grey water tank but rather below the waterline. Also my shower sump, which used to work seems to have conked out. What I turn it on, it doesn’t make noise so I’m...
  2. C

    Raritan Compact (older model) Fresh Head Conversion

    Hi All, I have an older Raritan Compact toilet on my boat, which is a manual pump toilet that is currently not operational (there's a crack in the pump). This existing Raritan has been fitted to the original toilet intake and sink drain thruhulls (dangerous and not allowed for direct discharge...
  3. thelilnauti

    Simple head plumbing

    Hello everyone, With my boat finally on the hard and having its bottom done along with all new thru-hulls I am looking to simplify our head plumbing. I am wondering what many of you are using by way of a simple system? Our current system I believe is over complicated. Head discharge to a Y...
  4. J

    Fresh Water Tank Vents

    My boat has 3 water tanks. Each tank's vent line rises to an elevated loop, then descends beneath the floorboards before disappearing under the engine (which is located under the cabin floor). Attached is a photo of 2 of the 3 elevated loops. The hoses on the left side of the photo come from...
  5. Sailboat.Sequoyah

    Water Tank Access

    Morning, all. Sequoyah is a '99 H340. The potable water tank is beneath the V berth. Access to the top of it can be had through two hatches, but they offer none to the tank's stern side. There is no way I see to do it through the sole, which is solid glass beneath a thin layer of teak & holly...
  6. Z

    Flushing toilets with fresh water

    I just purchased a boat and it seems the previous owner switched out the plumbing of the water flushing all the toilets with fresh water (instead of the default salt water). He says it is because, since the fresh water tank is big enough, he prefers it as salt water stagnant/pooling in the...
  7. mnmpizza

    What type of fitting is this?

    I can’t seem to discern the Name of these gray plastic fittings. I know it’s not pex. And it is a 1/2” NPT. There is a ferrel on the hose to provide a water tite fit.
  8. L

    New Catalina 25 owner, looking for sails

    Hello! I hope all is well. My name is Liz and I am 22. I just got my hands on a 1992 Catalina 25. The boat is in great condition other than minimal plumbing issues and I am in need of sails since the once I have are in bad condition. Any help of suggestions would be appreciated! Thanks!
  9. Brooke B

    Leaking Water Tank

    Hi all! I am new to SBO and also relatively new to sailing so pls bear with me here! ;) My husband and I just purchased a 1994 Hunter Legend 40.5. We've recently noticed a dark spot on the wood flooring that sits above our starboard water tank and when we pulled up the floor piece, found that...
  10. Gchit

    Grey water tank

    Hi, does anyone know where to find a holding tank for a 35 mkII
  11. E

    Clogged head

    I am having trouble pumping my head. After pumping for about 5 times the pump handle gets very hard to move up/down. First I took apart the head itself and found no blockage in the bowl or pump itself I then disconnected the sanitary hose that leads from the head to the holding tank. I then...