Wow thanks EVERYONE for your replies!
I was going by the sensors to flush it. It seemed like a weekly thing give or take and it was always registering as full. Maybe the sensors were just giving me bad readings. Gosh what a hassle this is turning out to be.
I'll be fishing around tomorrow with a proper flexible wand, and making certain it's completely flushed out and cleaned up before starting the enzyme treatment every refill.
Never used the blue stuff I don't think. There was a green product that the guy at the RV shop recommended, but I have since switched over to tanktechRX.
I'll give an update tomorrow after I've gone at it with the flexible tank wand and hot water. Got an anti-siphon valve to attach to the sink faucet as well, just to be extra careful.
Thank you again everyone. Hopefully my next post will be filled with good results.
And I'll be adding the RV anti-freeze as well just as a precautionary measure. It snowed earlier so at least it's a little warmer than it was before.
All your advice is very helpful and I'll definitely be taking it all into account for all future fills and flushes as well.
Edit:
I didn't see there was a page 2 haha.
Most of the lights I was looking at, say they only work for 75 watts and under. Is there one you'd recommend? Maybe if I hang two in there; one on one side, and another at the other, that would be enough and wouldn't overpower the recommended wattage? For those that max at 75.
It was lows of 28-30f overnight. Lots of ice hanging off the compartment door, and the tubing that you flush everything through, had frozen liquid in it. So I was worried the tank had become frozen as well.
I was looking at those propane lamps that have the saucer looking coils that sit on top of the propane tank? Those look pretty good for what I'd need, but are they safe? Can they be left by themselves exposed to the elements?
Stinky... slinky...
Well I now have a new name for the draining tube.
You got me thinking. I wonder if I could cut a hole in the drain pipe just big enough for a hose to fit into, then get a rubber cap and one of those metal rings you see used on a lot of pipes and hoses to keep stuff extra secure, to keep it sealed when not in use.
Push the hose up through that, and try the bladder. Or maybe so the same with a 'stinky slinky'. I found a rip in the one I have now, so it's already getting trashed. Could slice a small hole in it and feed the hose in, then try as you had suggested with the bladder, or jet hose nozzle.
And yes...
There are already stories to be told haha.
Thanks everyone for your help!
