Draining fresh water tank

[Kylesmith3021]

Went to drain fresh tank after sanitizing it and its literally a small valve that takes over an hour to drain..Am i missing something here?? Its located under trailer below water fillup

[myredracer]

duplicate...

[myredracer]

If you have an outdoor shower you can run the pump at the same time. Also pumping into the grey tank at the same time should help providing you can dump the tank where you happen to be.

If you need to do this often, I wonder if it would help to install a 1/2" to 3/4" or 1" PEX coupling and a ball valve for better flow. I installed a tee and valve right at our pump so I can attach a hose directly at the pump - pumps water out somewhat faster than using the outdoor shower or a faucet. Nash has a good setup for fast draining.

[coolbreeze01]

A 2 1/4" to 2 1/2" knife drain is normal and doesn't take long. Anything less is substandard and just plain cheap.

[rockhillmanor]

Yup that's normal. A teenie tiny opening to drain the fresh tank.

If I am in a hurry I just open up the "cold" kitchen faucet full force if I want it to drain into the gray or open up the "cold" bathroom faucet which empties into the black. This is done with the water pump on not shore station water hookup.

If you are doing this at home I'd pick what ever faucet drains into the gray tank so you can dump the now filled with fresh water gray tank.

Using the coach faucets really cuts the time it takes to drain using that darn small gravity drain valve.

[Nunyadamn]

I will pump it into the grey tank. It takes forever if I don't for the 80 gallon tank. Takes about 15-20min by using the pump.

[NanciL]

Sounds weird to me.
I have a 2006 travel trailer with a 55 gallon fresh water tank.
It has a gate valve and will empty in a few minutes.

Are you sure you didn't just open the low point drain?

jack L

[pconroy328]

I've got a 55 gallon - and it's a long process too. 😞

[Dirtpig]

How northwood does it, with a 2.5" pipe with knife valve. Can drain tank in less then a minute. Handy for sanitizing water system. I know the feeling of having to wait 30min for your tank to drain when sanitizing! Our last 2 campers had small drain hoses, i imagine this is to reduce cost.

[Sprink-Fitter]

We have a 150 gallon tank, it takes a very long time to drain it.

[RoyF]

Second the motion; it takes that long if you have a 60 or 80 gallon tank.

[TucsonJim]

No, that's pretty normal. My last two rigs had the same thing. My current one has a gate valve and I can empty a full tank in about two minutes.