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Old 01-12-2013, 11:04 AM   #1
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Re: Holding tanks

Hey BK1..... What are your plans for the bus? part-time, some-time full-time?
If you're just going to use it every now and them for short periods of time then no....... you will not need the big tanks........

but for the price it's a good deal..... you don't have use it to it's full capacity....... but nice to have if you need it...
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Old 01-12-2013, 12:12 PM   #2
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Re: Holding tanks

Well . to answer the question ......... yes you can ..... BUT!!!

While most recommend that you keep you grey tanks open during use to let it continually drain........ the Black tank is just the opposite..... It should remain closed during use and only drain it before travel or whenever required...... Reason being is the liquids will keep the other stuff from hardening and sticking to the inside of the tank. commonly called the "cone of death" or mountain of ? well you get the ideal. After draining the black tank be sure to add some water, dawn dish washing liquid, and Calgon water softener if possible. This will clean the tank as you drive and you can drain as needed whenever you setup again..... You can do the Grey tank also during travel to keep the odors down and food partials from sticking to the inside of the tank.
Also be sure to vent the tanks to the outside preferably thru the roof.... keeps odors away.........
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Old 01-12-2013, 08:25 PM   #3
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Re: Holding tanks

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Originally Posted by Booger1k
I ran up on an RV getting parted out and I now have access to the holding tanks. They are:

78 gal FUEL
80 gal FRESH
50 gal GREY &
55 gal BLACK

Now we don't know the dimensions yet & before we go off & ask them to measure we were looking for input on the capacity. I was thinking we could use the 80 gal fresh & maybe combine the 50 or 55 for grey & black... They are only asking $50.00 dollars each, removed & delivered. Any inputs before I get back to them on these?
We fulltime and live in an RV park. This is what we have...
Our Black tank is 25(?) gallons and we dump every three days (and before any bouts of really cold weather or incoming storms... don't want to have to dump in nasty weather). The vanity sink also drains into the black tank. More water is better. We do not use any chems in our black tank. We also avoid anti bacterial soaps since they have wrecked havoc on our black tank in the past. Our grey tank is currently 42 gallons. I want to bump that up to 72 by adding another 30 gallon tank. We leave the grey tank open... let me be clearer... Because we are on full hookups and traditionally the grey tank valve is left open under those conditions, we plumbed the grey drains to completely bypass the grey tank unless we close a valve to divert the grey water into the tank. Now our fresh water is a bit different. We filter every drop of water that enters the holding tank. I have both a permanent sediment filter (no filter to replace because it is just a screen) and a Whirlpool Whole House filter housing. I run the equivalent of a Whirlpool DB-2 filter (0.5 micron). My thing is cysts must be removed. This knocks our water pressure down to a dribble. We put a stock tank float valve (valvehad same size fitting as the 1/2 inch PEX plumbing) in the 30 gallon fresh tank (Valterra ABS Rocket tank). Later this summer we will add another 30 gallon tank to give us 60 gallons. We run a ShurFlo 2088 Classic 12vDC multi-fixture water pump. This gives us good water pressure no matter what the park pressure is. We will be adding a dishwasher and a washing machine to the bus at some point. This means we will need the larger tank capacity. Due to the filters it takes a while to fill the fresh tank if it's empty. With the float valve, the tank is always full or filling and we don't have to mess with it.

We are a tad paranoid about water safety. We have been in a campground with bad water (horrible place but only $7 per week... we were desperate at the time) and we didn't drink the water (except what I boiled for 5 minutes) but the dog & cat did. Both got sick and the vintage cat never completely recovered. Based on the furkids symptoms, they were infected with Giardia Cysts. Also we have spent a great deal of time in an area where the drinking water tended to smell/taste like the pesticides/fertilizers they used on the local crops. Are my filters overkill for city water? Probably. Will I stop using them? No! Since 2009, we have been in areas that have issued "boil water" warnings 6 times. So 6 times we were subjected to questionable water (heard about the boil warnings always too late).

Rule of thumb is that you grey tank equals or slightly exceeds your fresh tank.
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Old 01-12-2013, 09:15 PM   #4
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Re: Holding tanks

Lorna, could you elaborate on the tank float valve you used? Thanks Jack
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Old 01-13-2013, 12:09 AM   #5
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Re: Holding tanks

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Lorna, could you elaborate on the tank float valve you used? Thanks Jack


It's a float assembly for a livestock water tank. We bought ours from Roswell Livestock & Feed. It was cheap ($6.99) and a "thru the wall" fitting.

Here is an Amazon link. Parts For 88SW And 88ESW Stock Waterers - NEW FLOAT ASSEMBLY COMPLETE

I would think that you should be able to find the same or similar at a local farm supply store... and save the ridiculous shipping fee.
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Old 01-13-2013, 10:24 AM   #6
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Re: Holding tanks

Lorna, thanks for the info and the link. I like the very compact size Jack
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Old 01-14-2013, 06:35 PM   #7
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Re: Holding tanks

I would rather have more tank than I need than not enough... But, great tank info everyone...
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Old 01-14-2013, 10:13 PM   #8
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Re: Holding tanks

Quote:
Originally Posted by dirtygoat
I would rather have more tank than I need than not enough....
Kinda hard to make a tank bigger when you need a bigger one because your grey tank is backing up into the shower because someone forgot the tanks needed to be dumped. Or you run out of fresh water with a head full of shampoo and it's snowing outside! Not that that has ever happened to me. Definitely not fun.
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Old 01-15-2013, 04:58 AM   #9
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Re: Holding tanks

in my situation, i put in almost 150 fresh water tanks, so i could go at least 2 weeks for 2 people. Normally i can go longer than that, as i also have a water cooler in my bus, and several 5 gallon jugs..and i also have a water filter system for bad water, which my wife prefers that over the cooler for some reason.
I have something like 100 gallons for grey water and 30 for black. I have never had my black tank fill up, but whilst traveling have never let it go more than about 3 weeks.
Currently at our place in alabama, i just have both sewage lines open to the septic, and rinse the toilet occasionally. Have never had any black tank blockage for 20 yrs, but that is one reason i added a flexible hose sprayer in line to the toilet feed, after the first bus i built had some blockage...

Also, if one gets the holding tanks with the sensors, one can wire them up to a panel which will show the levels... just saying...
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Old 01-15-2013, 09:31 PM   #10
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Re: Holding tanks

I grabbed the panel with the level info lights out of the RV I got my tanks from... Haven't hooked then up yet, but will some day...

I also have other tanks I'll add later for more storage of fresh water... I want one for an outside water source, I have an extra pump as well... When it runs out, oh well... You're cut off... No soup for you...

I have a buddy that has an outdoor shower that pulls from his only fresh tank and other people around camp can drain him dry really quick... He plans on doing the same small tank for the outdoor as me...
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