Water Powered Water Pump

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Water Powered Basepump RB 750

The idea of a water powered water pump might be confusing to some people, as these aren't commonly used, and many people are simply unaware that you can have a backup sump pump without using battery power. This is an alternative to expensive battery powered units.

Keep in mind, that this doesn't work at all if you're on well water, you must have water pressure... and although the city main pumps also shut down during a water outage, water pressure is usually still there in the pipes because of city water towers. So as long as you have water pressure even during a power outage, using water power to get rid of excess water still works.

On the right, you'll see a diagram of how water powered water sump pumps work. The actual RB 750 unit is mounted on a ceiling joist. The actual installation should probably be done by a plumber, who'll probably take no more than 2-3 hours to install this - but many mechanically inclined owners have installed their own system.

Here's a review by an owner who's found out the hard way that you need a backup:

OK, so when I installed my primary sump pump a year ago, I thought about a backup-- but, didn't think much because my crock BARELY drips, and we live in an area with little or no power outages.

Whoops. 3 weeks ago we had a massive series of storms, and our crock went from drips to a steady stream of water pouring in. Oh yeah, and we lost power for SEVERAL hours. Fortunately, this time we were home and sat by the crock and bailed. And bailed. And bailed. TONS of homes in our area had flooded basements.

The next day I ordered this unit, the RB750. Even under the worst conditions, this version rated way above the max water we ever get.

Set aside a good day for the installation- the plumbing takes the longest (considering you need a new valve, union, a few elbows, a "T"). I am skilled at plumbing, so the installation for me was relatively easy - just time-consuming because you need to take care to do this RIGHT.

When I hooked it up and fired up the water supply, I have to admit that although I was a bit skeptical, my attitude quickly turned to amazement because this thing works GREAT. As a test, I unplugged my primary sump pump and started filling the crock with water. *click*. *whoosh* - and the pump turned on and instantly started sucking water. I did some measuring and this thing emptied about 3 gallons out of the crock in 15-18 seconds, which actually does match the rating of the unit (750 gallons an hour).

Some people complained about "hammering" (loud noise) when the pump shuts off, I didn't notice it that much but we have arrestors in other parts of our plumbing. I suspect this is more prominent in the bigger model (RB-1000).

Despite the majority of the parts being made of plastic, I highly recommend this as a backup system for your sump pump. One afternoon and the install is done-- and no maintenance required, no super-expensive batteries, etc. And it works quite well.

Review by Caseybea - Read the original review & comments here.

Right Now, You Can Buy This Water Powered Backup Basement Sump Pump and Save The Environment!

The technical specs on this 'Basepump RB 750' are:

• Extremely reliable, very powerful, water powered backup sump pump system
• No battery to wear out or maintain.
• No charger to plug in or monitor.
• Automatic, independent system from the primary sump pump
• Mounted on the ceiling, high above the sump, clean and dry.
• And did I mention... No battery to wear out or maintain.

Here's another review from a water powered water pump owner:

Now that I look back at my situation with my sump pump setup, I don't know how I would live without the Basepump. This product simply works! After looking at battery backup sump pumps, concrete cutting options, barrier/dam creations, and all other ideas myself and others came up with, this gem landed in my lap.

When the power goes out, what is the one thing that in most cases still works? Water.... or water pressure to be more specific. This item creates suction using water pressure, and let me say it creates really good lift.

After contacting some plumbers for a install quote, I decided to install it myself. The package contains almost everything you need, minus some pipe and a few fittings/glues. I would say I spent around $50.00 in parts, and it took me around 4 hours total to get it in. I unplugged my main pump to simulate a power failure and waited until the water level put the water powered sump pump into action.

At first I barely noticed the unit running, it is super quiet. It also pumps alot of water out, I would say just as fast as my main sump pump. I now sleep alot better when a hard rain comes down, knowing that I have my main pump, my backup Basepump, and two flood alarms downstairs keeping my basement dry.

My question always was, what keeps your basement dry when the power goes out for a extended period of time, and you are NOT home? The answer is Basepump, a water powered sump pump. Don't think about it, just get it.

Review by M. Reimer - See original review here.

Installing the Basepump RB 750 isn't really for the fainthearted - it does take a little bit more installation work than your typical battery operated backup sump pump - but since you don't have to replace batteries every 3-5 years, the savings can add up over the long haul. Even if you spend the money to have this professionally installed, you'll probably end up saving money over the best of the battery operated systems - simply because there is far less maintenance involved with the water powered RB 750.

Here's another review by an RB 750 owner:

I just had this installed by a friend. Really all you need is some good planning and some experience soldering copper plumbing. I had a plumber tell me these weren't any good but I have a feeling they have experience with the really cheap versions sold at places like Home Depot. And they happen to prefer the battery based units they sell for almost $3000 installed. Go figure.

Pros:

1. No battery needed, purely mechanical. Batteries also normally need to be replaced every 3-5 years so no worry about that here.
2. I'd rather pay extra for water than have water in my basement
3. Can be away from home for long periods of time without worry
4. Great instructions, fairly easy to install if you plan ahead

Cons:

1. Loud when shutting off but this can be an indicator of when it is running. (Can also install a water hammer thing - don't know the exact name).
2. Needs to run 1 full minute before the air gets sucked out and water is actually evacuated.
3. Effectiveness depends largely on your water pressure but this makes sense.

I just don't know why people have hardly heard of these. I saw this on 'This Old House' at least 10-15 years ago. I can't find any negative reviews either. 1 person complained it ran and ran because his main pump failed and he didn't know it was running. He ended up with a fairly large water bill. So... it was working and he never checked his basement? I don't know to me that means it works even for long periods of time which it wasn't meant for. And it's the owner's responsibility to install an alarm so you know when it's in operation.

I think 'con' (2) can be taken care of by a dual-check valve to keep water in the vertical discharge pipe (so it doesn't fill with air) but I don't know if the suction is enough to actually open the valve. I'm not a plumber and don't have enough experience with these valves. As it is, it works great given the 1 minute of sucking air, but again this is a backup and hopefully will never be needed.

If you set this up right I think you will sleep well at night knowing it is there.

Review by RocketScience - See original review here.

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