TR 1 wrote on Fri, 07 April 2017 14:17

So having taken some longish trips recently with the GMC, I'm increasingly seeing the benefit of the Thermasan system. Especially with my wife, myself and our 3 kids on board. On the plus side, our coach has a recirculating toilet, which seems to do great on conserving water. But still, 5 people traveling for an extended period can fill a GMC holding tank fairly quick.

So I I've been considering the possibility of trying to piece together a Thermasan system. However, those of you who have chemical toilets know the key to them is using good chemicals. Thetford's Aqua-Kem seems to do best out of the toilet additives I've tried. However, it contains formaldehyde and some other chemicals as well.

So my question is, would it be dangerous to use a Thermasan system on holding tanks containing AquaKem?

From what I've read, under heat, formaldehyde brakes down into mostly CO2/and or CO and Methanol, which does not sound too terrible, considering the CO/CO2 are already present in vehicle exhaust....

Any thoughts, opinions or concerns on using a Thermasan system with holding tank chems?

If any one wants a reasonable facsimile of a thermosan pump I have one I'd send for the price of shipping. It is a Masterflex 7017-21 pump driven by a Nissan wiper motor. We had it on and used it until this year when we installed a bigger black tank.


http://www.gmcmhphotos.com/photos/power-level-valve-fitting/p10563.html
I used the minimum speed switch in the original cruise and a vacuum switch to control it.