Adding air hole for water tank.

[Oceanearth]

Cheers from Cape York, Qld

Does everyone have problems filling the WT on their 2004 Hawk OB (or similar model)? Having no way to help the air from the tank escape means it competes with the water going in and I have to fill it a very low pressure.

Have a similar problem when emptying as well.

I'm thinking of installing some sort of sealable air hole near the top of the tank with a plug that I can just remove when filling up.

Has anyone done something like this and can recommend a method or even parts to use?

[GTS225]

Interesting. Most campers/caravans have some type of vent hose, coming from the top of the tank, or very near, to either dribble out underneath, or is run through a tube to the gravity fill port.
At least mine has a small screened hole, (about 10mm), right close to the fill port.

Roger

[ARoamer]

Not sure of your fill type but all of my previous RV's with a open fill had a screened vent right next to the cap.
If yours has no vent, buy a length of 3/8" tubing and see if you can snake it down the fill to allow air to escape. Or, probably better yet, connect your fill hose to a piece 1/2" hose and snake that into your tank which would allow air to escape from the fill tube. If you can't get tubing down the fill and can access the top of the tank it shouldn't be hard to install a vent.

[Scott]

Originally Posted by ARoamer

Not sure of your fill type but all of my previous RV's with a open fill had a screened vent right next to the cap.

x2 Both of my USA built trailers worked the same way. I'm not sure how they work is Australia.

[Jagiven]

I see you are from Australia, and I know your campervans are built a little differently than the US models.

Did you buy this camper van new or used? I suspect used. I would look to see if the previous owner installed a shutoff valve on the OEM overflow/vent line. I would start looking in two locations. Under the rig, right where the overflow pipe discharges, and secondly, at the tank.

Second questions, is your fill port a gravity fill or a wet bay style? Jayco Australia might still be or was still using the small vent hole on the gravity fill port, The hose could be pinched. On the inside of the rig, locate the gravity fill port and follow the line (if there is one) back to the tank.