Toilet trouble

[rsthomis]

Hi friends! Well, we were bad. We had a sudden dip into the 20s but we hadn't winterized our 2012 Bullet Premier because we were going on a trip the next week. Fast forward to this week, we get set up and hook to city water, and there is water spewing from behind the toilet (Dometic 310). Hubby has tried to tighten every fitting he can see, but everything is tight. Every time water is to pressure, we have the leak. Question: is this something we will be able to repair ourselves, or should we just bite the bullet and take it to the shop? Since all the lines disappear into the back of the unit, I assume it will have to be pulled out. Thanks in advance

[Ken / Claudia]

I think that's the same toilet I have. And I have had the same problem, there is a easy 10 min fix. The water line has a check valve at the toilet at end of water line. It is about 50 bucks at a dealer. It has a thin part that will freeze and split.
If it's the same as mine, it is removable by 1 or two screws attaching it to the toilet and the water line screwed on it. If you have a manual, it has the part number listed. Or contact a dealer with the toilet brand and model number. I found the local dealer stocks many of them. Mainly sold in the spring after dewinterizing.
Last to prevent this again, step on the flush valve to clear it of water with pump/water off. Also when winterizing, step on the flush valve to get anti-freeze into it or if only using air, again to clear any water out. Easy to get done with 2 people. 1 does the anti-freeze or air as another person steps on that flush valve. After I replaced mine, I purchased another as a spare just in case.

[Steveo57]

It's an easy fix. Just get a new valve, $15 or so. Turn off the water, unhook the hose, remove the screws in the back holding the valve in, pop it out and pop in the new one.

[UsTwo]

I had the same problem, there is a easy 10 min fix. The water line has a check valve at the toilet at end of water line. It is about 50 bucks at a dealer. It has a thin part that will freeze and split.
If it's the same as mine, it is removable by 1 or two screws attaching it to the toilet and the water line screwed on it. If you have a manual, it has the part number listed. Or contact a dealer with the toilet brand and model number. I found the local dealer stocks many of them.


Or about 18 bucks on Amazon.. I went thru the same thing this last spring..It has 2 small screws to holding it on..I went to the hardware store and got a 1/2 in plug and screwed that in until the part came in. You can still use the toilet, but will have to had add the water to flush Do make sure you step on the pedal when winterizing.. I forgot to do that last year..

[bobbecky]

This is from the Dometic owners manual:

IMPORTANT:
Toilet warranty does not cover freeze-damaged water valve
The Dometic 310 and 320 series toilet warranty expressly excludes coverage for any damages to
the toilet or vehicle that may occur as a result of improper winterization of the toilet. An indicator of
improper winterization is freeze damage to the water valve which results in leaks.
Dometic 310 and 320 series toilet water valves
exceed maximum water pressure as defined by
North American plumbing code agencies. However,
if trapped water freezes in piping that supplies water
to the toilet, it expands and creates extremely high
pressure that can damage the valve (see photo).
To avoid this, winterize the toilet as described in
this manual. If freeze-damage occurs as a result of
improper winterization, replace the water valve with
a 300/310/320 toilet water valve kit, part number
385311641. IF WATER VALVE IS RETURNED FOR
WARRANTY CLAIM, DOMETIC RESERVES THE
RIGHT TO DENY CLAIM IF PROBLEM IS CAUSED
BY FREEZE DAMAGE.
Fig. 6 A – Freeze Damage Indicator Window: white stress marks indicate freeze damage
B – Water valve damage due to severe exposure to below-freezing temperature

[Ken / Claudia]

Well, I learned where to buy the next toilet valve. In my case I was leaving on a trip the next day and had a new one installed after a 15 min trip to the dealer. So, I got 2 and cost just under 100 bucks as I recall.

[wiredgeorge]

Well, I learned where to buy the next toilet valve. In my case I was leaving on a trip the next day and had a new one installed after a 15 min trip to the dealer. So, I got 2 and cost just under 100 bucks as I recall.

$11.75 each on eBay:
https://www.ebay.com/itm/Water-Valve-Kit-385311641-For-Dometic-Sealand-marine-300-310-320-series-Toilet/173674331122?_trkparms=ispr%3D1&hash=item286fcbfbf2:g:3dcAAOSw6KxcBh1W&enc=AQAEAAACUBPxNw%2BVj6nta7CKEs3N0qWXnVziM1Jx%2Fw xmhfSaeaSo0FPo0mMghpPYC1Y80u8uE605dUO6lcvTeMXlm19P o0yW2mrdHUTMXJcb%2FfzjLgONQFsECEM%2BHLiIKYagVNrrJt gGhXj0QEF4S6PkDiqTXz9fctRU%2Fslzd5VLdx2aAOatU%2FbH DAR2POM7H1GFK4fBJxv4JNk9q%2FGU3nR4%2B83bpHGaHA7IT9 e2T5SZSucDfK29QRxYeleMXbL%2BzgFqIHMcDcVXrMzYNcUJIv qBMMhXwRdmENV9iY%2BgoCaVv%2BwrptP%2BPxdteHTD%2BRvy 03fOPuRK5QXV%2FXYAezcAntH6DV7xkDlnN%2FFh372U6vT4tE AmEsUnoPQlYk4R0kJ7%2BLj9ICxRc7xzxAqmTSZ7PHA5JcpX%2 BZQRPtf%2FmUVi2aJy%2BJldf2iaQcQZJGSgSmsxq%2BtlnXwq WKRMMxSw5joI1jGyCr3p%2BImUX8L8Tve3pGtTHH6tYakYyunM qq6TuCZWIegzqrkO9OmOApmZObNL5k5pKXEvXtCmNNKbOlHZ9L Fra4KAa5GANn1IcmelJKWf1yVNAYIevtWwZmYPYV%2BXmATipP Xh0CAW%2F76Wfd1kNaCyVTjtdZA%2FF58GqAemgKH3X7f9kpFR 3nd8Bn%2FmNFi4pT9dq3D5avDprPoy6SP2UaTgqWMbAHcZVYYQ Ky8PUk8DX6iFD7epu6TR0SjMS9IcHdEMQoda3vm6%2FPoCep4x %2Fpset9D7tqQ2JGymwcD5p9aKPD2Ano8bOFE193b%2BEEZzfU KMvb2bHFw%3D&checksum=173674331122f3c9fa3e99fb40308e7c482e68fde c3a&enc=AQAEAAACUBPxNw%2BVj6nta7CKEs3N0qWXnVziM1Jx%2Fw xmhfSaeaSo0FPo0mMghpPYC1Y80u8uE605dUO6lcvTeMXlm19P o0yW2mrdHUTMXJcb%2FfzjLgONQFsECEM%2BHLiIKYagVNrrJt gGhXj0QEF4S6PkDiqTXz9fctRU%2Fslzd5VLdx2aAOatU%2FbH DAR2POM7H1GFK4fBJxv4JNk9q%2FGU3nR4%2B83bpHGaHA7IT9 e2T5SZSucDfK29QRxYeleMXbL%2BzgFqIHMcDcVXrMzYNcUJIv qBMMhXwRdmENV9iY%2BgoCaVv%2BwrptP%2BPxdteHTD%2BRvy 03fOPuRK5QXV%2FXYAezcAntH6DV7xkDlnN%2FFh372U6vT4tE AmEsUnoPQlYk4R0kJ7%2BLj9ICxRc7xzxAqmTSZ7PHA5JcpX%2 BZQRPtf%2FmUVi2aJy%2BJldf2iaQcQZJGSgSmsxq%2BtlnXwq WKRMMxSw5joI1jGyCr3p%2BImUX8L8Tve3pGtTHH6tYakYyunM qq6TuCZWIegzqrkO9OmOApmZObNL5k5pKXEvXtCmNNKbOlHZ9L Fra4KAa5GANn1IcmelJKWf1yVNAYIevtWwZmYPYV%2BXmATipP Xh0CAW%2F76Wfd1kNaCyVTjtdZA%2FF58GqAemgKH3X7f9kpFR 3nd8Bn%2FmNFi4pT9dq3D5avDprPoy6SP2UaTgqWMbAHcZVYYQ Ky8PUk8DX6iFD7epu6TR0SjMS9IcHdEMQoda3vm6%2FPoCep4x %2Fpset9D7tqQ2JGymwcD5p9aKPD2Ano8bOFE193b%2BEEZzfU KMvb2bHFw%3D&checksum=173674331122f3c9fa3e99fb40308e7c482e68fde c3a