shih87
New member
I have no idea on that one.
Just learnt the off-line UPS will only turn pump on when power outage happen, but then I will have one pump stay off in normal hours!?
I don't think that meet my needs. I will go for in-line UPS, I think.
BTW, a new video while practice Stupeflix.
http://m.youtube.com/watch?feature=youtube_gdata&v=Ltf00ae6ygs&desktop_uri=%2Fwatch%3Fv%3DLtf00ae6ygs%26feature%3Dyoutube_gdata