Well ok, I had my first encounter with the enemy! PG&E scheduled power outage (replacing a transformer). Well ok I was prepared, 200 watt car inverter I figure I can run 100 watts worth of return pumps (between two tanks) and be happy as can be with plenty of head room.
Try one: 8:30am power goes out, my plan goes into action, I walk downstairs plug the inverter into my car, powers up no problem. Drag extension cord to tank one, "tee off" with a surge strip, plug in return pump one (Quiet One 3000, ~40watts) good to go, plug in extension cord two, go to other pump, (Rio HF20 ~70watts) it fires up no problem. Then I get creative and unplug the main thing plug in my Kill-a-watt meter because I was curious how much power my batteries can supply... plug back in.. nothing. I go back to the inverter it's dead, no power at all... ahhhh #@*(&
So a freak for a bit, then figure no problem I can go to Kragen I
saw an advert for a 400watt one, I get there, they didn't have a 400watt one only a 1200watt one.. Overkill so I pass, and zoom to Target (where I got the original one) I run in, get a 400watt one (figuring that maybe the power draw over loaded the 200 watt initially or something) then I think.. hmmm I don't know if I have the receipt for the first one, lemme buy a 200watt one as well and I can return it and just sell the new unopened on ebay or something.
Try 2: Get home, plug the 400watt one, in, it has two plugs so I figure one plug for each pump, first one (quiet one) no problem... I plug in the second one (Rio HF) Cuts the power... GRUMBLE#@(*&(#@& What the hell? I had 400 watts of head room no way that pump could have drawn that much additional power.
Try 3: Luckily I had the unopened 200watt inverter, last try (this time I won't use the HF instead a simple Seio 1500 to move water around). Plugged it in, everything works! I figure I'll plug in the other Seio in the tank 2600 watt... but then think better of it. Everything is working fine whew... now I go to the other tank, figure I'll plug in a Seio620 it's only 8 watts... plugged in it... BZZAT fried another Fricking inverter! WTF!?!
So I go about opening the inverters figuring I some how burnt the fuse out... look in, nothing nada (at this point the power turns on so I'm in the clear) but now I'm a little confused as to why these things didn't work. I had more than enough headroom as far as wattage. What is it about the pumps that caused this? Is it that initial power draw that pulls too many amps that spike kills them? Is it a POS cheap chinese made crap they sell at target? Is it something about the Rio brand pumps that draws a funny current? Is it the "sine" wave that the inverters make that's more like a square wave with pumps that makes it screwy??
Eitherway luckily I have reciepts for two of them, maybe I can find the third, but I need to think about another plan for power outtage now. There's something to be said for redundancy but the fact these inverters (3 of them!) all powered off really has frustrated me as to why it did it.