09/10/2008 04:48:11 PM
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arctica
Member
Posts: 45
Joined: 05/24/2007
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I had the bright idea to replace the carpet in our 1986 44' Gibson
Standard. I started tearing up the carpet in the galley. I
soon discovered that someone had at sometime cut into the floor. My
guess was in an attempt to remove the leaking holding tank.
Our current in use holding tank is a plastic horizontal
looking barrel type in our storage area. I decided to see if
I could get the old tank out. After a few more cuts in the floor, I
was able to slide it back enough to get it out. While
cleaning out the space left by the holding tank I could see the
water tank aft of the galley. It had apparently been replaced at
sometime as it is plastic. What concerns me is the top of the
water tank seems sunken, as if the tank has been sucked into
itself. I removed the vent line from the water tank and a
little water came back from the vent line. What do I do now?
Do I need to do anything? Everything seems to be working just
fine.
Back to the holding tank. I believe that I should replace the
sanitation hoses soon. There is a smell that just won't quit,
and I think that the hoses are permeated. Should I install a
new holding tank in the original spot, or leave that area vacant
and install the new hoses to the current tank? Any
suggestions and opinions are welcomed.
Sorry this got so long.
Mary
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09/10/2008 05:07:50 PM
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Ej
Admiral
Posts: 620
Joined: 05/15/2005
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The sinking in of the tank is most likley because the tank was not supported on the sides correctly. This is what Ronco told me when I purchased a new holding tank. If severe enough they will crack along the edges. If size is equal I would go for the tank that left the boat centered.
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09/11/2008 12:11:05 PM
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TheJudge
Admiral
Posts: 282
Joined: 05/01/2006
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One, I would use wood spacers to shore up the sides of the freshwater tank while you are in there. Two, I would install a new blackwater tank back in the center bilge to lower center of gravity and open that storage locker back up for what was intended. You have already done the hard part. Three, I would attempt to blow through that freshwater vent line to see if it is clear. A dirt dobber getting in that tiny opening on the hull could stop up the line and then when you pump water out with your on demand pump it cannot displace the water with air through the vent so it is sucking the tank down. Not good for the tank or the pump.
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The Judge Rules
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09/11/2008 12:34:39 PM
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alreadygone
Admiral
Posts: 792
Joined: 02/07/2004
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+1 What the Judge said!
Bob
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I carry a gun because it's too tiring carrying a cop.
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09/20/2008 11:43:14 AM
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arctica
Member
Posts: 45
Joined: 05/24/2007
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Okay, I am going to replace the holding tank. The tank that I
removed and my current tank have a 5/8 in vent line. Is this
big enough, or should I go bigger? If bigger, how big?
I will be ordering the tank to my specs and will need to decide
before I order.
Thank you to all who provide info for this forum. So far I am only
in the learning stages, and don't have much to offer others.
I hope to contribute someday.
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09/21/2008 06:53:04 PM
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Dan
Member
Posts: 132
Joined: 07/10/2008
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Make sure to check out ronco-plastics.com for your new tank. I did so after reading the recomendations for them on this forum. I measured it up, faxed them the drawing and two days later they called to tell me the tank was on its way, prepped with the needed fittings. They should also be able to answer any questions about vent size verses tank size. I'm installing the new tank tomorrow, wish me luck.
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Dan
Lake Monroe
Bloomington, IN
1986 Gibson 50'
Twin 454's
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09/24/2008 09:40:54 AM
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arctica
Member
Posts: 45
Joined: 05/24/2007
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I am wondering how the install went for Dan.
I have decided to order from Ronco, and am going to put the lines
in the same places as the old tank. I remember that Peggie had
written something about the boat manufacturers being less
interested in installing a well designed system than just getting
the pieces in and hidden (paraphrasing). I was hoping to
get Peggies book before I had to do this but it is back ordered and
no telling when I can get a hold of one.
So, I will just put the lines in the same place, but, will increase
the vent line size to 1 inch.
Any other ideas or advice?
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09/28/2008 02:55:55 PM
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Dan
Member
Posts: 132
Joined: 07/10/2008
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Sorry, gone a few days. The install went great, a bit smelly but all in all very straight forward. We opened up the floor pulled the old tank, cleaned up the bilge, then left it open a few days with an ozonator inside. The new tank fit perfectly, the floor went back together with no issues. I would say it could all be done in one day, but would recommend the extra airing out if you have the time. I wish I could say the smell left immediately but there is still some odor left. I spoke to a houseboat outfit in our area that works mostly on older houseboats who said to give it a few weeks and the odor would disapear completely. Certainly glad to have that job behind me!
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Dan
Lake Monroe
Bloomington, IN
1986 Gibson 50'
Twin 454's
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