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Old 04-19-2012, 11:46 AM   #1
Junior Member
Join Date: Apr 2012
Location: Tomball, TX
Posts: 1
A newbie in Texas

Hi Everybody,

We recently (in March) bought a 2008 Rockwood 2603 - we towed a toy hauler from Tomball, TX to Sequoia NP last summer, but other than that we're new to TT camping.

Things are going well so far (5 nights camped). I do have one question, though - related to cyclepuck's post a few minutes ago (didn't want to hijack!) - regarding the black water tank...

Quick background - the TT has two separate hookups - one black, one grey. I've been told that typically you have ONE hookup, so you dump black, flush hose with grey. I was thinking of crawling underneath this weekend and seeing if I could fashion a way to re-plumb it so that it's tee'd together with only one outlet. However - if it's better to leave the black tank closed while camping, this isn't worth the time/energy/expense. Of course my reasoning for this was so that I could have both tanks open simultaneously. Can anybody confirm or offer experience on this?

Thanks in advance for any help,

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Old 04-19-2012, 02:10 PM   #2
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Join Date: Mar 2011
Location: Southern California
Posts: 201
It will help if you add a pic. If im getting this right, your black and grey tanks dont use the same outlet? You dont want to leave black water open, you need liquid in there to help flush the solids. Fill tank 2/3 before dumping. Then flush your grey tank. Helps clean out hose.

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Old 04-19-2012, 03:00 PM   #3
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Join Date: Mar 2008
Location: Concord, NC
Posts: 24,337
You can hard plumb the outlets together if you have 2 slide valves at one outlet and another slide valve at the rear one. I have done this on 2 campers myself by adding the 4th slide valve at the front outlet for the rear tank. Works good and only have to hook up the hose to one outlet. I leave the rear slide valve open which essentially joins the 2 grey tanks together.

showtime0022 is correct, DO NOT leave the black tank open or you will have a mess in the tank that is difficult to empty and not pleasant to smell.
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