My question concerns the placement of the Y-Valve on a Hunter 320. The question really is how to pump directly over board, and how to empty the holding tank overboard. I don't intend to do this, trust me.
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Don't really need a Y valve.
Bill: You really do not need a Y valve. If your waste goes directly to the tank and then you pump out from there you may have two outlets from the tank (one for overboard, one for the deck fitting). Many old vessels had a Y valve on the input side of the tank so you could discharge directly overboard and not go into the tank or by switching the valve you would pump into the tank. This is no longer consider a preferred method. Check out the West Marine Catalog, they have some diagrams of different options for these different setups.
Bill: You really do not need a Y valve. If your waste goes directly to the tank and then you pump out from there you may have two outlets from the tank (one for overboard, one for the deck fitting). Many old vessels had a Y valve on the input side of the tank so you could discharge directly overboard and not go into the tank or by switching the valve you would pump into the tank. This is no longer consider a preferred method. Check out the West Marine Catalog, they have some diagrams of different options for these different setups.
You can't do both with one y-valve
Because they each have to be in a different line. To flush a toilet directly overboard, a y-valve would have to be installed in the the toilet discharge line to provide a choice of going directly overboard or into the tank. (Who says that's not the preferred method?) To have the ability to dump a tank, you could have a y-valve--or there may be only a tee (which many boat builders use to save money) in the pumpout line to provide a choice of pumping out or going overboard via a pump. Or, the tank could be fitted with two discharge lines...one going directly to the deck pumpout fitting, the other going directly to the pump and then the thru-hull.
Because they each have to be in a different line. To flush a toilet directly overboard, a y-valve would have to be installed in the the toilet discharge line to provide a choice of going directly overboard or into the tank. (Who says that's not the preferred method?) To have the ability to dump a tank, you could have a y-valve--or there may be only a tee (which many boat builders use to save money) in the pumpout line to provide a choice of pumping out or going overboard via a pump. Or, the tank could be fitted with two discharge lines...one going directly to the deck pumpout fitting, the other going directly to the pump and then the thru-hull.
Y valve
Bill you will get alot of thoughts and ideas on this here. Peggie Hall (the Head Mistress) is the expert here on marine sanitation, so I would take her advice over any other. You can email her. Some points to ponder... Are you in an area where overboard discharge is legal? Do you have plans to be? Im a west coast guy so we still can discharge outside of 3 miles from the nearest point of land in approved areas. I personally dont like y valves so I took mine out and ran the discharge line directly from the holding tank to a Sealand T series discharge pump. Its self priming and works well with my Vacuflush system. This set up takes the dred out of a sudden coastie inspection. There are very strict regulations on y valves (the position and does it need to be safety wired). All that being said, if you do choose to have overboard capability, IMHO put the y valve near or even on top of the holding tank where it is easy to get too. Peggie has an excellent book that is money well spent. It can tell you A-Z how to set it up properly. Cheers
Bill you will get alot of thoughts and ideas on this here. Peggie Hall (the Head Mistress) is the expert here on marine sanitation, so I would take her advice over any other. You can email her. Some points to ponder... Are you in an area where overboard discharge is legal? Do you have plans to be? Im a west coast guy so we still can discharge outside of 3 miles from the nearest point of land in approved areas. I personally dont like y valves so I took mine out and ran the discharge line directly from the holding tank to a Sealand T series discharge pump. Its self priming and works well with my Vacuflush system. This set up takes the dred out of a sudden coastie inspection. There are very strict regulations on y valves (the position and does it need to be safety wired). All that being said, if you do choose to have overboard capability, IMHO put the y valve near or even on top of the holding tank where it is easy to get too. Peggie has an excellent book that is money well spent. It can tell you A-Z how to set it up properly. Cheers
Macerator
My 320 came with a factory macerator pump setup right next to the holding tank. Being inside the bay I have never used it, don't know if it still works but if you are in a place to use it, I don't think it would be hard to install one. There is alot of room back there. Gary
My 320 came with a factory macerator pump setup right next to the holding tank. Being inside the bay I have never used it, don't know if it still works but if you are in a place to use it, I don't think it would be hard to install one. There is alot of room back there. Gary
Take a look at this article.
This is the link to the WM Advisor site. They have several designs that may be to your liking. While their preferred method may not be best for someone that is always outside of a no-discharge area, it is probably the best way to prevent accidental discharge. You never need to worry which position the overboard discharge valve is pointed.
This is the link to the WM Advisor site. They have several designs that may be to your liking. While their preferred method may not be best for someone that is always outside of a no-discharge area, it is probably the best way to prevent accidental discharge. You never need to worry which position the overboard discharge valve is pointed.
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