|Item Weight||8.5 pounds|
|Product Dimensions||6.2 x 6 x 5 inches|
|California residents||Click here for Proposition 65 warning|
|Item model number||500800|
|Item Package Quantity||1|
|Number Of Pieces||1|
|Special Features||Easy to Install|
|Warranty Description||1-Year Limited Warranty|
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Watts 500800 Hot Water Recirculating System with Built-In Timer
|Price:||$187.11 & FREE Shipping. Details|
Want this professionally installed?
- Service provided by a local pro
- Removing old pump unit
- Installing 1 pump in existing pit
- Connecting pump to power outlet and discharge line
- Testing for proper functionality
- Pro will contact you within 1 business day to schedule
- Kick back and only pay when the job is done
- Backed by Amazon's Happiness Guarantee
- Book the service directly on Amazon
- Receive confirmation within 1 business day
- Backed by Amazon's Happiness Guarantee
- Enter your model number to make sure this fits.
- Conserve Water - Up to 15,000 gallons of water per year
- Save Money - Up to 10% of your water bill
- Maintenance Free
- Easy to install in less than 1 hour
- Includes: Pump with timer, 2 adapters with rubber washers, valve mounting screws, sensor valve, two 12-inch supply lines
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From the Manufacturer
Top Customer Reviews
The only negative thing I can say about it is that the remote stop valve did fail. There was not a whole lot of information about this problem with this system to be found, even on the internet, so I didn't know what was going wrong at first. But slowly it seemed like there was a lot of hot water on the cold side when we turned the cold water on. It was more and more as time went on. And the valve became noisy and sounded like water was going through it all the time. I finally called Watts customer service. After being on hold for a half and hour, I talked to a rep who confirmed to me that the stop valve was failing. They were willing to send me a replacement, but I had to either send the old one back first or pay for one and get a credit after I sent the old one back. They said they are very strict about this because there is only a one year warranty on the valve and people were always calling in trying to get a free replacement after the valve failed or get extra valves when needed.
Because he didn't sound very concerned, I then asked if this was a common problem and he admitted then that YES the valves do inevitably fail. It could be 6 months or a year or two years, three years.... who knows? But they do fail and it's just a matter of time. They really aren't made to last very long. But they are made to last at least a year- long enough to expire the warranty period.
They don't tell you that when you buy it, of course and it doesn't say it in the manual.Read more ›
Doubt about if it really works? Try this: go to the farthest faucet in your house and open the hot water. Once the water becomes hot, close it, but not fully, leaving a very small stream. Now go to other faucets and open hot water, you bet, instant hot water! It'll keep this way as long as you keep that small stream flowing.
The problem is that small stream goes wasted. How about recycle it into the hot water heater? Sure, but how? The hot and cold water lines have the same pressure, therefore water cannot go from the hot line into the cold line. What if I add a pump into the hot line? Exactly, that's what this Watts product does. Problem solved.
For a practical and fine product, Watts also add a temperature sensor, so the recirculation only happens when the hot line becomes not so warm. This, plus the stream is really small, adds very small extra energy cost to the heater.
The pump is very small, only 25 watts, using less electricity than a lighting bulb. There is also a 24-hr timer (in 15-minutes increments), allowing you to shut the entire system off during the periods when you do not use warm water, such as sleep and work times. This reduces even further the already very small added energy cost. BTW, the pump is thoroughly quiet, no audible noise at all.
An alternative product is the Laing Autocirc. It is a single piece can all be installed under a sink, could be a better choice for some people.Read more ›
Being an engineer I was always a bit curious why the pump was necessary, since a law of thermodynamics states that heat always flows toward cold. Theoretically, the mix valves under the sinks ought to function without the pump. Well, one day I unplugged the timer to see what would happen. You know what? The faucets produced hot water just as fast without the pump running! Now we leave the pump off all the time. My advice is to save yourselves money and just purchase the undersink valve kits (about $50 each). The pump can always be added later if you find it's still necessary. Maybe some water systems require the pump. Hope this helps!
Most Recent Customer Reviews
Very smart idea and easy retrofit. If you have a wifi outlet this will be even better and energy efficient. You can turn this into a on demand recirc pump. Read morePublished 14 days ago by Matiah Martin
best fix to having to waste water to get warm water instantly thoughout the entire house. wish I had heard about it 20+ years back. Read morePublished 23 days ago by Amazon Customer
I use this so we have instant hot water at the kitchen sink and the master bath shower. We used to wait over a minute for hot water at these fixtures. Read morePublished 27 days ago by richt
The manifold was stripped and i need another one
Ship to Elizabeth Hills 2752 E. Marnett Rd Athol Idaho 83801
Extremely disappointed! Paid an electrician to add an outlet next to our gas hot water heater and paid a licensed plumber to install this unit. Read morePublished 1 month ago by Greg
Worked great for 18 months, then the sensor valve stopped working. $40 additional dollars to replace it. Read morePublished 1 month ago by Amazon Customer
I installed the recirc valve under the sink farthest from my hot water heater, as instructed, and at THAT sink, there is instant hot water. Read morePublished 1 month ago by Jay J. Williams