Source for Black Tank FLush Check Valve?

[MBnKen]

My 2005 EXDP black tank flush is acting up. I used to get a strong sound of the water jets running in the back tank when hooked to water supply. Now I am getting very low water flow but a large amount of noise from the check valve in the bathroom cabinet.

This is not the black vacuum breaker. It is the white check valve attached to pex fresh water piping that leads to the black tank flush. It is located in the bathroom cabinet under the sink. There is a fresh water inlet (pex) coming to the bottom of the valve with a screw on attachment and an similar outlet from the side of the valve. There is a 2" round white cap on top.

I saw a new one at a dealer and it is now has a clear plastic body rather than the original white. At $52 I figured I would see if I can get it directly from the manufacturer. It is really tight in there so I can't see the manufacturer name without removing it...

Anyone replace this yet and know the source (other than Newmar parts)?

Thanks
Ken

[Mr_D]

I found one in a catalog from NTP distributors in OR. Seems to me it was less than $10.
The last time mine acted up I pulled it apart and cleaned it, then lubed it with silicone spray. Put it back and its still working fine after three or four years.

[MBnKen]

Thanks Mr. D,
I will try the same...great idea. And thanks for the source too if it does not work after cleaning and lubricating.

Now if I need to get ready for some contortion to get past the commode to reach it.

[MBnKen]

If anyone ever needs one.... the black tank flush check valve and spray unit are available from Recreation Nation. It is a Cast Flush by Cast Products, part 937020. Their price is $3.32. That is quite a difference from the $53 listed on the same part from a local RV dealer.

I tried to clean and lubricate my original one but the smaller of the check valve plungers was broken.

https://recreationnation.me/drupal/c...ush-valve-assy