|
03-20-2024, 05:09 PM
|
#1
|
Junior Member
Join Date: Mar 2024
Location: Grass Valley
Posts: 2
|
Flush for blacktank
I purchased a 2020 cougar 5th wheel model 32 BHS and when I hook up hose to flush nothing happens. I'm new to this type flush, but don't see any handles or ways to open.
|
|
|
03-20-2024, 06:03 PM
|
#2
|
Senior Member
Join Date: Sep 2023
Location: Independent Republic of Horry
Posts: 117
|
There usually is no valve besides the anti backflow valve. Do you hear water running through the hose or do you see water running into the tank when you look down the toilet? The best way to tell if you have flow is open the black drain. Be careful when you use it as the tank can become pressurized so never leave it alone and flushing.
__________________
2018 Ram 1500 crew cab, 2020 Cougar 22RBS
Just the two of us on the roam with our two Jacks.
The difference between genius and stupidity is that genius has its limits. A.E.
|
|
|
03-20-2024, 06:32 PM
|
#3
|
Junior Member
Join Date: Mar 2024
Location: Grass Valley
Posts: 2
|
No water flushing thru at all.
|
|
|
03-20-2024, 06:38 PM
|
#4
|
Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,357
|
Welcome to the forum
Odds are the anti siphon valve is installed backwards, more common than you think. It’s probably under the sink in the bathroom, or behind the shower wall.
Best way to test is to remove the pex lines and note which line is connected to which port on the valve. The valve will have an arrow indicating the direction of flow, and LOW pressure air at the hose hook up will verify the direction of flow and no kink.
If it’s hooked up correctly, then I would contact the selling dealer and schedule a warranty service.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
|
|
|
03-21-2024, 12:19 PM
|
#5
|
Senior Member
Join Date: Apr 2019
Location: Henniker
Posts: 2,183
|
Since it is a 2020, and you don't know if it ever worked for the previous owner, there could be a few issues. As others have noted, the anti-siphon valve could be backwards, or stuck closed from lack of use, or just plain capped off because it failed/leaked at some point in the past. Another possibility is that the spray head in the tank has filled with...let's call it crud, and is blocked and useless.
__________________
Rob & Amy
2019 Passport 240BH SL (for sale)
2024 Cougar 29BHL (Taking delivery 5/11/24)
2022 Ford F250 7.3L Godzilla Crew Cab FX4
|
|
|
03-21-2024, 12:48 PM
|
#6
|
Senior Member
Join Date: Feb 2022
Location: Onaga, KS
Posts: 466
|
Odds are it is the anti-siphon valve installed backwards. Ours was, and the numerous posts I've seen on this forum regarding the same issue leads me to go in that direction first.
Leaking, or blanked off doesn't sound good!
__________________
2021 Cougar 25RDS
2019 RAM 3500 Longhorn, Mega Cab, DRW,
Cummins 6.7 HO, Aisin 6 Spd HD, 4x4
|
|
|
03-21-2024, 01:11 PM
|
#7
|
Senior Member
Join Date: Jul 2019
Location: delco
Posts: 150
|
Ok folks ,place your bets on the under sink valve I had same problem on my 2014 bullet. I dont think i know of anyone whom had this valve that worked right!
|
|
|
03-21-2024, 02:03 PM
|
#8
|
Senior Member
Join Date: Sep 2020
Location: jackson
Posts: 1,122
|
Crimped pex plumping here! - that had to be cut and elbow put in place.
__________________
JXNBBL (Jay)
Jackson, NH
2021 Keystone 330BHS
2023 Ram 3500 6.7L diesel, 3.73 ratio
|
|
|
03-21-2024, 02:21 PM
|
#9
|
Senior Member
Join Date: Apr 2019
Location: Henniker
Posts: 2,183
|
Mine ceased working and I cut it out and direct-piped. Now I use a anti-siphon hose fitting
__________________
Rob & Amy
2019 Passport 240BH SL (for sale)
2024 Cougar 29BHL (Taking delivery 5/11/24)
2022 Ford F250 7.3L Godzilla Crew Cab FX4
|
|
|
03-26-2024, 11:32 AM
|
#10
|
Senior Member
Join Date: Oct 2023
Location: Topeka, KS
Posts: 161
|
After reading all the horror stories about the plastic POS anti-vacuum under the sink, I replaced mine with brass followed by a brass inline anti-backflow. Haven't even been out camping in it yet. Threw the brand new plastic one it came with away.
__________________
TT: 2024 Cougar Half-Ton 25MLE
TV: 2022 F-250 Crew Cab XLT 7.3 Godzilla
Old TT: 2021 Jayco 264BH
Old TV: 2012 F-150 Crew Cab XLT EcoBoost
|
|
|
03-26-2024, 02:55 PM
|
#11
|
Site Team
Join Date: Feb 2014
Location: W. Texas
Posts: 17,702
|
Quote:
Originally Posted by CBears
After reading all the horror stories about the plastic POS anti-vacuum under the sink, I replaced mine with brass followed by a brass inline anti-backflow. Haven't even been out camping in it yet. Threw the brand new plastic one it came with away.
|
LOL! I have the one from my previous '14 trailer sitting on a top shelf of a shelving unit at the RV barn. I look at it occasionally as I try to decide what terrible end I'm going to give it. Took that RV out on it's maiden voyage about 10 miles from the dealer. On departure morning I was going to do a black tank flush, hooked up the trailer end and had DW turn on the water. The anti siphon was bad (brand new) and soaked me when it wouldn't pass water (and obviously I didn't have the connection tight). It was in the 20s IIRC and thought I was going to freeze. I haven't forgiven it so sentencing has not been passed - yet.
__________________
Danny and Susan, wife of 56 years
2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10
2020 Montana High Country 331RL
|
|
|
03-26-2024, 05:21 PM
|
#12
|
Senior Member
Join Date: Oct 2023
Location: Topeka, KS
Posts: 161
|
Quote:
Originally Posted by sourdough
LOL! I have the one from my previous '14 trailer sitting on a top shelf of a shelving unit at the RV barn. I look at it occasionally as I try to decide what terrible end I'm going to give it. Took that RV out on it's maiden voyage about 10 miles from the dealer. On departure morning I was going to do a black tank flush, hooked up the trailer end and had DW turn on the water. The anti siphon was bad (brand new) and soaked me when it wouldn't pass water (and obviously I didn't have the connection tight). It was in the 20s IIRC and thought I was going to freeze. I haven't forgiven it so sentencing has not been passed - yet.
|
Hahaha, funny, not funny. Great story though!!
__________________
TT: 2024 Cougar Half-Ton 25MLE
TV: 2022 F-250 Crew Cab XLT 7.3 Godzilla
Old TT: 2021 Jayco 264BH
Old TV: 2012 F-150 Crew Cab XLT EcoBoost
|
|
|
03-31-2024, 01:19 PM
|
#13
|
Senior Member
Join Date: Sep 2019
Location: Jacksonville
Posts: 542
|
Ours was installed backwards from factory. Turned around and wasn’t pleased with the water pressure or flow so I took it out and tied the lines together. Works great now. All it does is adds water back to the tank faster than toilet flush. There isn’t enough water pressure to wash anything down.
__________________
2020 Cougar Half Ton 29RKS Fifth Wheel
2019 F350 4WD Lariat SRW 6.7 Diesel SD
Anderson Ultimate 5th Hitch - JT Strongarm TST509 TPMS- 2200W(8)Solar Panels - 800AH BattleBorn Batteries. 3000W Victron MultiPlus II Inv. SoftStartRV on 2 AC’s - Predator 3500 generator Airlift 5000 bags
|
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Threads |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|