<a href=showthread.php?s=&postid=13843046#post13843046 target=_blank>Originally posted</a> by melev
Whew! I was thinking you were having a mental short circuit there for a minute.
well - that may still be of concern :lol:
tank temp this morning was 76.2
I am only running 1 300w heater at the moment so I need to get the other one installed.
Last year when my RK2 was out to get the display light replaced, I was running 2 250w Won brothers. I noticed a daily increase to temperature and quickly noticed that one of these was stuck in the on position, so I'm a strong believer in two things.
1. run dual heaters on large systems, if one fails the other can at least do some of the work. Don't size each for the system as stand alones (undersize them) so if one fails on it wont over heat the tank.
2. I use heaters with built in controllers but put them on a controller as a redundant control.
Last spring I purchased two replacement 300w heaters (forgot the brand) that have been working fine. I pulled one of them and put it in my 29g (overkill) as the heater in it was pretty old and it appeared the built in controller had lost its ability to maintain a constant temperature. The temperature "on" setting seemed to vary about 3 degrees. Bottom line is I need to pull the 29g heater and put it back in the 300g system and buy a reliable 100w for my 29g.
Ph was 8.08 early this morning, so I dosed another gallon of Kalc. I'll have to assign another channel on the RK2 to my high Ph off solenoid. I'l also pull the feed tubing to see if I can find out where it's clogging.
The GFCI tripped again last night, so I reset it again this morning and watched it a couple minutes, seemed fine, but when I came back about 15 minutes later it was off again. Suspecting one of the Korilias on the "B" circuit I shut off the wave maker that powers the 4 Korilia K4s and reset the GFCI. That was over an hour ago, the GFCI has not tripped since, so I'm pretty sure one of the Korilias on the"B" circuit of the wave maker has developed a short.