With the wastewater valves closed and the black cap off place a 5 gallon bucket under the sewer drain port.
Black water tank valve.
The black tank collects the waste from the toilet.
The black tank should only contain the biodegradable enzymatic product of your choice your solid and liquid waste and septic safe toilet paper nothing else.
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It s located under the rv carriage positioned next to the grey tank which holds the water run off from sinks and showers.
It holds dirty water from your toilet.
To determine which valve is leaking you should have your rv waste tanks empty.
The second is a grey water tank that holds dirty water from your kitchen sink and shower.
Connect a garden hose to the barrel see image then choose either the tank setting or the hose setting to direct the flow of water where you need it.
That s a horrible enough thought to send just about any rver into a cold swea.
If you just want the valves they re available in two different sizes.
Run about 5 gallons of water into the gray water tank through the kitchen faucet.
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The first one is a freshwater tank that stores fresh water.
The last one is the black water tank.
Let that drain completely as well and then close it.
Pull the black water valve and let the tank drain completely.
Flush valves allow you to rinse your black water tank and flush out your sewer hose in order to break up clogs and clean your tank sensors.
Make sure to purchase the appropriate assembly for your needs.
Your black water tank is full and the drain valve is stuck.
1 5 for gray water tanks.
Once you can hear that it s completely empty no more sounds of water rushing through close the valve and pull the gray water valve.