Holding Tank Replacement

[chef2sail]

One of my winter projects is replacing the holding tank, y valve, macerator etc.

I have decided on only one item the trident green stripe hose as its the most pliable low odor hose to work with.

Questions-
What tanks have you got- I am torn between, ronco and sealand...Sealand seems more expensive and not sure why?

Where are the inlets/ outlets located? inlet from head should be at the top I beleive, Is there any negatives to having the outlet at the bottom side wall going to the y valve from there ( after the Y is either the macerator or the pump out? If the outlet is on top..will the dip tune get clogged or leave a sediment in the bottom of the tank? Inspection port and vent outlets at the top I beleive.

Thanks for your suggestions.

Dave

[Sailormann]

Questions-
What tanks have you got- I am torn between, ronco and sealand...Sealand seems more expensive and not sure why?

The tank in my boat is original. Have not looked at Ronco or Sealand, but I would advise you to buy the one with the thickest walls you can find.

Where are the inlets/ outlets located? inlet from head should be at the top I beleive,

Yes - this is correct.

Is there any negatives to having the outlet at the bottom side wall going to the y valve from there ( after the Y is either the macerator or the pump out? If the outlet is on top..will the dip tune get clogged or leave a sediment in the bottom of the tank?

The tube could get clogged yes - not sure how likely that is if the tube is of sufficient diameter. There is a tube in our tank and it has not proven to be a problem. The thing to look for is a tank that allows you to pump every last drop of the stuff out - try to avoid buying one that would allow a few inches of sludge to remain.

Inspection port and vent outlets at the top I believe.

Yes. The larger the vent - the better. If there is sufficient oxygen getting to the tank it will not smell too much. If there is no oxygen getting in it can reek badly.

Good Luck !

[badsanta]

I went with the ronco. I had all the connections come out the top. Pump in, inspection, vent and a pickup tube that reached almost to the bottom. I did it this way so if there is a broken hose or fitting everything stays in the tank. Where it is supposed to stay, not like my last aluminum tank. when you get the tank you can have the connections put anywhere you want.

[sailingdog]

I'd second what sailorman said. Leaving any significant amount of waste in the tank to settle is a really bad idea.

[celenoglu]

For any type of hose used for inlet and outlet, the best method of odor management is to use aluminum bands for covering the hose. The self sticking aluminum bands used for air duckts works well for this job.

[xort]

2 vent lines can help with air flow. Bigger is better. No low spots in the line.

[rikhall]

Greetings

Some things to think about;

• Make sure you read everything you can find by Peggy Hall (no relation to me) - she is the "Queen of Heads"
• Make sure whatever tank you get will fit through whatever holes it has to go through to get to its resting place. (We made a full size cardboard mcokup)
• Here are some of the pictures of my project on my last boat
• Picasa Web Albums - Rik - Gypsy Rover I...

Have fun with it and do nor rush.