Installed in combo with a brand new AquaSurge 4000 pump in minutes, no tools except Teflon Pipe Thread tape as advised. Initial trial run was great! No leaks at joint, Aquascape Signature Series Skimmer or 2" tubing.
HOWEVER, when pump was off to check plumbing and Biofalls for leaks the Biofalls water level dropped 75% over a 8 hour period. Usually indicating the check valve was not preventing backflow. But I assumed we had a leak outside the main pond since the Aquascape Dual Union valve was brand spanking new. So I dug out behind the Biofalls so to inspect the bulkhead and connections. My 2' hole was dry and so were the connections. So I figured the worst, a crack some where along 75' of buried 2" tubing.
Instead of inspecting the tubing we continued to clean out the 5,000 gal Koi pond for maintenance. After sump pumping the pond my wife noticed water still trickling heavily from the skimmer. The Aquascape Skimmer is brand new, so this means the new Aquascape Dual Union Check Valve had to be defective. I will return and exchange for a replacement. I will follow this review after installing the replacement next week.
6/9/20 UPDATE:
The replacement arrived the next day after my return request was placed!!!
Before installing I did a very basic leak test. I blew into the discharge side - No pressure loss. Upon removing the defective valve I repeated this same test method - definite pressure loss.
After installing the replacement I turn the AquaSurge 4000 pump on to fill the Biofalls, then shut pump off. This time there was no water level drop in Biofalls, meaning no back flow in to the pond. EXCELLENT!
SUMMARY:
IMO this model is very pricey, HOWEVER, it makes for the perfect fit when using brand new Aquascape AquaSurge pump and brand new Aquascape Skimmer. No guess work, fittings and connectors match perfectly for a complete new Aquascape upgrade.
IF you are perhaps using different brand pumps and/or skimmers it may be best to use a more simpler Check Valve assembly to give you more adaptability for your particular installation.
If this unit fails I will again update my review accordingly.
| Manufacturer | Aquascape |
|---|---|
| Place of Business | ST. CHARLES, IL, 60174 US |
| Item model number | B01MUHJMHG |
| Product Dimensions | 15.24 x 11.43 x 27.94 cm; 1.02 kg |
| ASIN | B01MUHJMHG |
