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Topic Title: Second Holding Tank?
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Created On: 12/01/2007 08:15:15 PM
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 12/01/2007 08:15:15 PM
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99Jamestowner
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Joined: 12/01/2007

We just bought our first houseboat this fall and have been thoroughly enjoying it.  It is a 99 Jamestowner with a single head and a 75 gallon holding tank.  I'd like to increase the holding tank capacity.  Can I add a second tank or would I need to replace the existing tank with a larger one?  I'd also like to add a gauge and would do this on the second tank if I could find a plastic tank the same height as the original tank.  Any thoughts would be appreciated.  I've enjoyed reading this forum and have found the posts extremely informative.
 12/02/2007 10:00:19 AM
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OLD HOUSEBOATER
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All depends on the layout of the area where you want to put it. In general 1 large is better than 2 small because of the extra plumbing. Sometimes 2 are required to balance out each other and prevent listing. 75 gallons is a good size tank. Perhaps a little education of your guests would make it big enough.

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OLD HOUSEBOATER
 12/02/2007 08:34:44 PM
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alreadygone
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WELCOME ABOARD!!!

Have to agree with OHB on all points. Don't know where you boat, but I'd bet other houseboaters nearby would allow you to look in their storage areas so you can find something silmilar to your layout (but with 2 tanks) that you could copy. On the modern lake boats, layouts and installations are pretty much the same regardless of boat brand.

As far as purchasing a second tank find "Ronco Plastics" in previous posts. They're reasonably priced, high quality, and have huge inventory of sizes and shapes.

Bob

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I carry a gun because it's too tiring carrying a cop.
 12/07/2007 05:47:31 PM
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99Jamestowner
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Thanks for the feedback.  I'd like to have a single larger tank, but I don't think I'll get it below the floor without a new whole!  The existing aluminum tank size hasn't been so much of a problem, yet, but I'd really like to have a holding tank gauge.  I went to the site Peg suggested for plastic tanks gauges and I'd like to use the non-contact style sender.  Anyway, thanks for the comments and any others are welcome as well.
 12/07/2007 11:31:23 PM
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peghall
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What's the make/model/age of your toilet? Some use a LOT more flush water than others, which can fill up a tank a lot faster. If yours is one of 'em, a new toilet that uses less would make more sense than replacing the tank...and would be a much better solution than two tanks.

However, if your tank is aluminum, you'll prob'ly have to replace it within the next couple of years anyway. 'Cuz the average lifespan for a metal waste tank is only about 10 years.

The Profile gauges are available with senders for metal tanks. The sender does go  inside the tank, but it's encased in a PVC tube so it never comes in contact with tank contents...works the same way that the external senders do...just reads the level through the tube instead of the tank wall. When you replace the tank with a plastic one, you can either move the sender to it, or replace it with one that goes on the outside of the tank.

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Peggie Hall, Moderator
Specializing in marine sanitation since 1987, Author: "Get Rid of Boat Odors--A Guide to Marine Sanitation Systems and Other Sources of Aggravation and Odor."
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 12/08/2007 07:15:03 AM
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99Jamestowner
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Hi Peg, thanks for the reply.  The toilet was just replaced before we bought the boat so it is about 1 year old.  It is an Atlantes Freedom by Raritan.  That's a good point about the life of the aluminum tank.  I, also, didn't realize the tank sensors for the aluminum tanks were non-contact.  Perhaps I'll do as you suggest and install one in the old tank and make plans for its replacement.  I'll have to see what I can get below the floor.  Thanks for your input.
 01/13/2008 10:08:01 AM
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SouthernCross
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Joined: 12/30/2007

99 Jamestowner, On the subject of a guage for your new tank or a combination of an added tank; take a look at the guage produced by Tri L Electronics. I have one of these, but don't have it installed as yet. I got on to this one from recommendations from several marina owners on Dale Hollow Lake. Now knowing how it works I don't much think it would matter if you had two tanks, so long as they were plumbed together, or if they were the same size. Jerry Lowe at Tri L could tell you for sure.

Here is the website if you would like to check it out. www.trilelectronics.com

Southern Cross

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16 X 80 1996 Summerset on Dale Hollow
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