Excellent Valve By Bull Hippo on 3/23/2015
Bull Hippo would recommend this product to a friend
This is the only check valve I would use , No metalic parts to corrode and poison your tank . Visual operation is assured by the clear housing. I see no appreciable reduction in head pressure. I use sched 40 pvc for tank return, Even with double anti siphon holes drilled in them , they still siphon more than I like ; exposing the tops of high tank mounted corals. With these valves installed, you will only siphon to the top of your overflow pipe or box.
This is not your hardware store check valve By Alec on 1/15/2015
Alec would recommend this product to a friend
I bought a check valve from Homedepot only to realize that the hardware store check valves require high pressure, therefore reduce the flow, to push the water through. This rubber check valve worked like a charm and the clear window let me see if the valve is open or closed easily!
Completely worth it. By Jason on 11/18/2014
Jason would recommend this product to a friend
I have 20 or so of the Home Depot check valves, they're cheap and work fine. But... they do go bad. After 15 years with different size aquariums over the years, now with 750g tank, the last thing you want is for something like this to go bad. I have been slowly replacing them with these valves mostly because you can see whats going on. I install them 'flap up' and follow the flow 'arrow' - None have failed. I will say they are a little bulky tho, but imo they are completely worth it.
Good but not perfect By Simply J on 11/3/2014
Simply J would recommend this product to a friend
I'm very pleased with these valves as a fail safe. However if you install them in a vertical position be careful not to drop/lose the O-Rings as they tend to fall out easily. Other then that very good product.
Good for the purpose By Daniel on 10/16/2014
Daniel would recommend this product to a friend
I don't have a million dollars to spend on a check valve at the moment, so I got this one. It did the job, and did it well. Having the union there is pretty nice.
There is one smidge of an issue. There's a very very small leak (allowing a very small drip of backflow). I assume this is because there isn't enough force on the flapper. BUT when you have water above and below the valve, there is enough force from pressure and gravity (creating a vacuum and pulling down on the flapper while water on top pushes it closed) zero leaking in this case.
had vibration but found problem By ayhan on 9/2/2014
ayhan would recommend this product to a friend
I had this vibration problem when sump pump is turned off. I was really [ticked] off.After research I found that problem is caused by pressure from water. I had installed check valve pretty close to sump pump which was mistake. Next day I have changed location of check valve and installed to closer return pipe goes to the tank. I know valve manufacturer didn't design for use fish tanks so I can't blame them for no instruction but BRS should take notes and print out for customers or send warning email about installation.
Terrible By Chris on 5/30/2014
Chris wouldn't recommend this product to a friend
I installed this check valve about a week ago and since then I've tested it many times. Does not work as advertised. The valve for some reason continually opens and closes making a load vibration noise. It only slows the water flow. Maybe it needs more time to wear in.
Awesome!! By 120reef on 1/11/2014
120reef would recommend this product to a friend
Looks and works awesome!
Didn't work for me By Brad on 11/23/2013
Brad wouldn't recommend this product to a friend
I used the 1 inch version of this valve between my display tank and return pump. The valve worked fine for a few weeks then started acting up when I was shut the pump off for feeding. The flapper would bounce on and off where it was supposed to seat. Not only did this mean it wasn't stopping the siphon from the tank, but also sent vibrations though the pipes and sump. This would continue until I would lift the loc line out of the water to break the siphon. I tried cleaning the valve even though it was not visibly dirty, and that would make it work correctly for about 2 days. I called customer service, they had no other suggestions but offered to send me a new one free. New on came and had the same problem.
I have now switched to the spears true union check valve and it has worked fine for over a month now. I gave the product 2 stars instead of 1 because a friend of mine uses this valve and it has given him no issues. I recommend spending a couple more bucks on the spears valve.
Great for return By G hoover on 11/18/2013
G hoover would recommend this product to a friend
Use inline for return pump. Works perfect when I shut pump down for maintenance . USE THIS OR HAVE PROBLEMS
Great quality By Yunier on 8/6/2013
Yunier would recommend this product to a friend
Received fast and works great
Great Check Valve By Warren on 4/25/2013
Warren would recommend this product to a friend
Does not interfer with water flow at all like some other check valves. With this being a union, it keeps you from having to add a union and a check valve. Saves space.
Works well By Dan on 4/21/2013
Dan would recommend this product to a friend
Its great. Have yet to have any problems with it.
Works grate By John on 4/3/2013
John would recommend this product to a friend
Installed on my sump return line work grate :)
Not handling the situation at this time. By BC on 2/25/2013
BC would recommend this product to a friend
Installed the check valve. Went quickly after I finally got all the parts to mate it to 3/4" vinyl return line. The main reason for the install was to prevent backflow to sump when switching of return pump. Didn't work, just slowed the backflow. Haven't had a chance to uninstall and take apart to see why the valve isn't stopping backflow but intend to in next couple of day.
Needed to upgrade the O-rings on the 2" valve By Frank on 2/9/2013
Frank would recommend this product to a friend
I normally do not write reviews but for this product I feel I should as it has a flaw in the design that is pretty easy to fix. They used a standard O-ring to seal the upper and lower union. I have my check valve hooked up to a Reflo Hammer head. and that pump created too much pressure for the O-ring and no matter how much I tried to tighten the union the unit would leak. I built in redundancy on my system so I have two units in series. Both units leaked in the same place. at the bottom union where the back pressure is greatest right before the swing valve.
I replaced the standard O-ring with a double seal O-ring from McMaster-Carr part number 90025K393. This took care of the issue and the leak is gone.
for lower pressure systems I am sure the standard O-ring is fine. But if you have a high pressure system that O-ring (sized to fit your valve you will have to measure yours and order the correct O-ring the part number I posted will only fit the 2" valve) will fix your leak.
I would recommend this unit, but I gave it only 3 stars as the manufacturer should just put the right O-ring on the valve. they are practically the same cost.
does what it does By chi on 11/10/2012
chi would recommend this product to a friend
does what it is suppose to do and has not failed on me yet when i lost power from super storm sandy
Works well By Wes on 8/16/2012
Wes would recommend this product to a friend
I have been running this valve for 3 months now with no problems at all. easy to maintain. Highly recommend.
Great swing valve for the money By Louis on 8/10/2012
Louis would recommend this product to a friend
No check valve is 100% safe in your aquarium so be prepared for future issues if you are only relying on this as your main source of stopping water.
That being said this true union is great. Decently priced. Easily taken apart for cleaning and inspections, and the clear plastic helps to see issues before they occur and no metal springs to corrode or fail from salt.
Great price for a true union check valve By Bill on 5/29/2012
Bill would recommend this product to a friend
Be sure to design your sump to handle all back flow because checkvalves are not good insurance for flod control. They seep water slowly and in a long term power outage it will flood if your sump isn't large enough. This product does work as good as any check valve but I don't feel any of them can be relied on to stop a flood.
Works as promised By Steve on 3/7/2012
Steve would recommend this product to a friend
A valve isn't necessarily the most glamorous piece of equipment we rely on for proper operation and failure preparedness - but important nonetheless. These valves work every time and provide just a little extra peace of mind that you don't come home to wet floors! Would recommend.
Peace of mind By Fawn on 2/12/2012
Fawn would recommend this product to a friend
Affordable, and so far has worked flawlessly. Everyone should have one of these on your sump return pipe. Simple to install and its nice to be able to view the inside of it through the clear pvc.
it is better to be safe then sorry By Chris on 11/22/2010
Chris would recommend this product to a friend
they work great you can't go wrong and is easy to clean.you can see in them to make sure that everything is working right.
Good value on a double union check valve. By Mr. Biggs on 12/16/2009
Mr. Biggs would recommend this product to a friend
Does what it was made to do prevent the back flow of water.
The unions make it handy for cleaning and replacement when it fails.
All check valves are subject to failure in the long run.
I would not depend on a check valve to prevent the draining of the main tank into your sump to prevent flooding. Design the sump to hold all the water that will drain from the main tank during pump or power failure.
This valve is a good value and I would recommend it to others when used in the right situation.