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 > 2020 Jayco GrayHawk Prestige 29 MVP Water Overflow?

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jolooote

Miami, FL

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Posted: 07/29/20 03:51pm Link  |  Quote  |  Print  |  Notify Moderator

Since I got my new cement pad I've been under the coach for the 1st time. Good look at the Fresh Water tank. I don't see any Fill Overflow drain hose??? Just Low Point drains. This is my 5th Motorhome and all have had Overflow hose in case I over fill it it, it won't turn the tank into a giant water Balloon till it explodes. Any clues? [emoticon]


Joe & Charlotte

2020 Jayco Greyhawk Prestige 29MV Celestial Blue Full Body Paint E-450 305hp V10 6spd Class C 'COACH'
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VA-Apraisr

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Posted: 07/29/20 04:06pm Link  |  Quote  |  Print  |  Notify Moderator

Probably a quick fix by drilling your own and running the line over to the fill up door. Most parts available at Lowe's or plumbing store. I replaced mine and put an on/off valve in the line so I don't keep loosing water on sharp turns as I've been doing (usually lose 10+ gallons by the time I get to my drycamping site). Last weekend, didn't loose hardly a drop.

dougrainer

Carrolton, Texas

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Posted: 08/01/20 05:39pm Link  |  Quote  |  Print  |  Notify Moderator

just fill the tank and then when it gets close to full, drop the water to a trickle and then observe where the water comes out. Jayco DOES vent the tank. Doug

cross21114

Baltimore, MD, USA

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Posted: 08/02/20 07:47am Link  |  Quote  |  Print  |  Notify Moderator

Do you have a little hole next to the water connection? I no longer trust my overflow which had a large bug crawl in it and die. M tank did swell up. Fortunately, caught it without damage (I have nightmares about that).

Our tank is under the master bed. Now I lift the bed and watch the water level as it fills.


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dougrainer

Carrolton, Texas

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Posted: 08/02/20 02:55pm Link  |  Quote  |  Print  |  Notify Moderator

cross21114 wrote:

Do you have a little hole next to the water connection? I no longer trust my overflow which had a large bug crawl in it and die. M tank did swell up. Fortunately, caught it without damage (I have nightmares about that).

Our tank is under the master bed. Now I lift the bed and watch the water level as it fills.


His Jayco does not have a gravity fill. It fills from the City water connection. Doug

cross21114

Baltimore, MD, USA

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Posted: 08/02/20 05:33pm Link  |  Quote  |  Print  |  Notify Moderator

dougrainer wrote:


His Jayco does not have a gravity fill. It fills from the City water connection. Doug


Mine does also. There is a selctor valve for filling, normal usage (with water pump), city and winterize. Next to the hose connection, there is a hole which is the overflow.

bobndot

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Posted: 08/02/20 07:35pm Link  |  Quote  |  Print  |  Notify Moderator

No real gravity fill anymore ? Hmm , maybe it's time to carry an extra pump in case the pump goes south.

I started carrying an extra pump when my OEM pump died on Sat noon of a holiday weekend 75 miles from rv help.
Its $79.00 insurance and you can keep the extra pump if you change rvs.

jolooote

Miami, FL

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Posted: 08/08/20 09:11pm Link  |  Quote  |  Print  |  Notify Moderator

Problem Solved! There IS drain hoses. 3 small hoses extend down from the top of the fresh water tank on the left (Drivers) side of the tank.

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