Post by nsgnomad on Apr 22, 2024 6:06:35 GMT 10
I have mentioned this issue before and I would normally continue the previous thread, but I cannot find it. Also I didn't want to take the current thread about a leaky Thetford flush valve off track.
I have had an ongoing issue of the LPG leak detector alarm activating spuriously for no apparent reason, even when the LPG has been turned off at the bottles for MONTHS. I have replaced the detector twice but it still keeps alarming occasionally. Just recently, with the van continually in use for weeks, the detector has also been activating at odd times, but not continually while the gas is turned on, so I have concluded it is not actually a leak in the gas pipes and we have not not noticed a gas smell. (Jane has a particularly sensitive sense of smell).
Anyway, what has this got to do with a leaky Thetford flush valve? Well, one respose in that thread, mentioned the build up of pressure in a Suburban HWS due to the action of the sacrificial anode and the production of hydrogen gas. Could this be the reason my detector is going off?
In my Traveller van, the HWS is under one seat of the cafe dining table, with the detector being located at the bottom of the inside room side of the opposite seat which contains the AGM batteries. The cafe table & seats also cover the wheel arch, so there is a gap beneath the cabinetry joining the two seats. There is a hole for wires to the detector from the batteries which I have tried to seal with gaffa tape in case the detector was picking up any fumes vented by the batteries. (Batteries are only 4 months old ) However, the seats are the normal cushion sitting on a removable plywood hatch to gain access to the space below, so not really sealed anyway.
What do you reckon? Could the problem of the spurious alarm be caused by hydrogen build up in the HWS?
I have had an ongoing issue of the LPG leak detector alarm activating spuriously for no apparent reason, even when the LPG has been turned off at the bottles for MONTHS. I have replaced the detector twice but it still keeps alarming occasionally. Just recently, with the van continually in use for weeks, the detector has also been activating at odd times, but not continually while the gas is turned on, so I have concluded it is not actually a leak in the gas pipes and we have not not noticed a gas smell. (Jane has a particularly sensitive sense of smell).
Anyway, what has this got to do with a leaky Thetford flush valve? Well, one respose in that thread, mentioned the build up of pressure in a Suburban HWS due to the action of the sacrificial anode and the production of hydrogen gas. Could this be the reason my detector is going off?
In my Traveller van, the HWS is under one seat of the cafe dining table, with the detector being located at the bottom of the inside room side of the opposite seat which contains the AGM batteries. The cafe table & seats also cover the wheel arch, so there is a gap beneath the cabinetry joining the two seats. There is a hole for wires to the detector from the batteries which I have tried to seal with gaffa tape in case the detector was picking up any fumes vented by the batteries. (Batteries are only 4 months old ) However, the seats are the normal cushion sitting on a removable plywood hatch to gain access to the space below, so not really sealed anyway.
What do you reckon? Could the problem of the spurious alarm be caused by hydrogen build up in the HWS?
