I did a search and came up empty (on Adv Rider). Is anyone using a Sump Pump Battery Backup System? If so, can you recommend a manufacturer and perhaps state what the total cost was? I am handy enough that I can install the system myself. So, I'm really curious about who has what, how it's performed (good or bad) and if you think it's worth the time, effort & money. Full Disclosure; I live in a townhouse community. Each of the buildings has four units. Each unit has a basement with a sump pump. I have heard some of my neighbors state that all of the sumps, in each building, are somehow tied together. I'm guess this is some type of 'emergency' system so that if one pump fails, theoretically, the water will make its way into the neighbor's sump and be ejected by that (working) pump. My t-house is internal (not one of the two end units) and my sump does appear to have ports that run to the neighboring units, on either side. However, if I peer into them, they dead end. So, if the sumps are tied together, it's external to my basement. My sump pump does not seem to run as much as all of my neighbors (based on their observations). I do not know why it runs so little but I do know it works as I test it occasionally. My t-house will be 13 years old in November. I have been thru one pump already (I'm pretty sure it was some crap unit used by the builder - based on it's appearance, when it failed, it was quite old). The current one is sold by Ace Hardware and is either 1/3 or 1/2 hp. I have no reason to expect it will fail any time soon. But, my basement is finished and I would like a little extra piece of mind especially if the power fails during a big Midwest t-storm. I have never had any flooding issues since moving in. Even when the first pump failed, I was lucky enough to discover it before 'bad things' happened. So, what do you recommend based on your experiences? TIA, Dave.