Electric waste tank valves

[Lantley]

Well I think it gives you a good idea that your valve sealed well this time.
However that does not mean a piece of debris or TP won't get caught on the gate valve blade next time.
Totally eliminating residual water may not be possible. There are just too many places for residual water to get trapped
Each fitting has a joint between the fitting and pipe that can hold water or catch debris that trap water.
This water remains trapped until you travel down the road and move around. The water drains and is caught at the end of the discharge pipe.
As long as it just a small amount it's not worth chasing after.

 

[Craig Anderson]

Creek Jenkins,

Please se answer from Alliance Servce below:


"Thank you for reaching out. I have received your request information regarding proper use of the 3-way switch for the Motordrain waste valve system. If you have any other questions, please feel free to contact us. Have a great day and happy camping!



To open the valve: press switch to up position

Once the valve is open, put the switch in the middle position

To close the valve: press switch to down position

Once the valve is closed, put the switch in the middle position"

Hope this helps,

This is very helpful. Probably needs to be conveyed to dealers too as we did not receive this information on our recent walkthrough. I currently have mine in closed position but will go out and put them in the middle position now. Thanks!

 

[Midnight Rider]

Just ad a Ventura valve on your drain pipe and you will no longer have to deal with that water in the pipe when you go to hook up.

 

[johnm]

Ok - no instructions on the electric dump valve operation anywhere I can find on this brand new 385FL.
What does the red light mean? open or closed or simply live? There are 3 positions for it - and the light is on during two of these positions..
Brand new rig - never been used - tanks are currently empty as I have been sanitizing the rig and have dumped all three tanks completely.

 

[2 Allies]

Closed is pushed in at the bottom, open is pushed all the way in to the top of the rocker switch. Once closed after emptying, rock the switch into the neutral or middle position.

See my post on this thread from the 1st page, straight from Alliance.

They have been working flawlessly for us.

Good luck,

 

[B&D1088]

Creek Jenkins,

Please se answer from Alliance Servce below:


"Thank you for reaching out. I have received your request information regarding proper use of the 3-way switch for the Motordrain waste valve system. If you have any other questions, please feel free to contact us. Have a great day and happy camping!



To open the valve: press switch to up position

Once the valve is open, put the switch in the middle position

To close the valve: press switch to down position

Once the valve is closed, put the switch in the middle position"

Hope this helps,

This is helpful to a point … just picked up our 2025 Paradigm 310RL.

Had it out now 13 days / 2 trips since picking it up on 7 June 2025. Dumped twice and as others have said, no information on proper operation of electric gates for the black and grey water valves.

Earlier today I performed another dump. Top (up) position is open and after leaving the switches in the middle-position (neutral according to other posts) the lights remained on long after dumping. Our Trip home is only 18 miles. My wife and I could hear the motor from time to time while unloading at home. I switched all three to down position (closed) and the noise stopped and indicator light turned off. Not sure of the recommendations here ??? or from the Alliance (Allies) maintenance department I’ve read.

As a side note the dump seemed to go well and the clear water was visible after twice filling the black-water to above 1/3 tank and dumping. I followed each black-water dump with a grey-water dump.

 

[2 Allies]

You put the switches in the close position (all the way down) until the light goes out. You will hear the motor stop, then put into the neutral or middle position.

Hope this helps ,

 

[B&D1088]

You put the switches in the close position (all the way down) until the light goes out. You will hear the motor stop, then put into the neutral or middle position.

Hope this helps ,

I’ll give that a try.

 

[2 Allies]

This might be a great subject for a Bill Martin 'What you know Wednesday ' episode now that more rigs are coming with electric dump valves.

 

[RichieW13]

Owner’s manual is pretty useless - out of date and not model specific.

It's pretty annoying that you buy a $70,000+ RV, but they don't issue owners manuals that are specific to the model and components included in your rig.