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Summary: There are three tanks on an RV or motor home, and these tanks are the first water tank, the gray water tank and the black water tank. Avoid clogs and plumbing problems in RV shower water tanks with help from an experienced RV specialist in this free video on RV showers.
Vince Preston is a graduate of ATI Technical School, and he has worked on RVs for 20 years. He currently works for Metro Mobile RV in Dallas-Forth Worth, Texas.read more
"Hi! This is Vince Preston with Metro Mobile RV Repair and today we're going to talk about how customers can empty their gray water and black water tank. You have 3 tanks on your RV or motor home. You have a first water tank, then you have a gray water tank which is all the water that runs through your sink, your shower, your bathroom sink, and then you have black water which is your toilet. These lines are connected up underneath the home, and there's usually 2 valves, one for black water and one for gray water. As you can see here, this is the cap, and this cap normally will have a hose to it that will go to a sewer line at RV park or wherever the customers park, and when the customers got a unit that's tell them it's full, I usually have a diagnostic board in this things then what he'll do is he'll come out here, depending on whether it's gray water or black water, and there's a valve handle. You will pull that valve handle and you will fill that system drain. After the system's drained, you want to push that handle back in, and the reason why that is, is so that you don't get gases from the sewer line that you're hooked up to that back up into your RV or motor home which is going to smell pretty bad, and plus sometimes it could be toxic or even poison dependin' on what somebody's put in their sewer. So, my suggestion would also be to always use a clean-out solutions. There's all kinds of mini products that you can pour down in your gray water and your black water tank that's going to help break stuff up, and help it flow smoothly so you don't get clogs and plumbing problems. Plumbing problems is one of the most expensive things on this units. It's not cheap to get fixed and if the valve gets clogged or tank hardens up on you, you're going to spend some money trying to get it taken care of. So, my suggestion would be to always use the right solutions, the right liquids and chemicals in your tanks, so that you're able to just pull a valve, dump your tanks and go on back to happy motor home."
eHow Article: How to Empty RV Shower Water