The SCWD (pronounced "squid") is a revolutionary device designed to provide alternating currents without the use of electricty. The SCWD mounts inline with 3/4" tubing, the two ports alternate the output, the bottom port is the input. A great alternative to expensive electronic ball valves. The SCWD will run on any pump with a minimum output of 50 GPH and a maximum output of 1400. The switching speed and current duration is dependent on the volume of water flowing through the SCWD. You can control the duration by controlling the flow going through the SCWD. Can be submersed for use with large power heads or used externally.SCWD is regarded by industry experts as the most energy efficient wave-making product on the market. It replicates nature by generating alternating currents within a tank or pond. These currents stimulate coral, fish, and plant growth and keep other aquatic life healthy because of the tank or pond? increased water currents and oxygenation.A great product with a full 90-day manufacturer`s warranty. Flow into SCWD SCWD TD Output Efficiency Switching Duration 150 gph 90 gph 60% 22 seconds 180 gph 120 gph 65% 16 seconds 240 gph 180 gph 75% 12 seconds 270 gph 210 gph 80% 10 seconds 330 gph 240 gph 80% 9 seconds 400 gph 360 gph 90% 7 seconds 600 gph 540 gph 90% 5 seconds 720 gph 660 gph 90% 4 seconds
M**Y
Great Product
Works like expected. It will lower head pressure and total gph, but that is to be expected and it isn't by much. Creates random water flow my reef and fish love. Had one before, it wore out after about 3 years which was beyond my expectations.
S**S
Performance
I have been using this product for many years now. The wave action it creates in my tank looks and works great. The fish and coral love it. All this by using just the main pump.
M**E
It works very well UPDATED 2018
Product arrived packed really well. It worked excellent , and I would totally recommend it again to others! And what a deal with AMAZON PRIME! Did I mention it is SILENT! After who knows how many switches, mine has finally started to hang up every once in awhile. I have tried to clean it, still hangs.. After 4 YEARS of service, I must replace.. DEF would recommend!
S**M
3rd one in 17 years. Definitely worth it.
Bought to replace same item that finally stopped working. 3rd one in 17 years running 24/7 on saltwater tank. Never leak and no power or battery to worry about. Have run flow to well over 1000 gpm without issues.
B**S
Must buy
I have read the complaints with this product and I have found them to be true.However, if you put a prefilter after the pump and before this SCWD you will not get the premature failures with the gears.With that said, you can not find a cheaper, more reliable wave maker on the market today.
P**S
Update:Functions but loud grind
Rapid response on email from manufacturer. Good service. Rectifying our issue expediently. Update upon replacement.(Grinding and loud right out of the box. New hoses, no debris, and great water. Disappointed. Called manufacturer. Went directly to an answering machine. Trying to get resolved. Will update.)
R**D
Must clean regularly
Works as advertised, but can have a relatively short life. I've been through two......so now I clean one thoroughly every 6 months with a return pump cleaning and swap an already cleaned one in. That seemed to be a necessary step for longevity.
J**T
works well
small size and functions well so far (4 weeks) with my mag 7 pump. i replaced 3 power heads and a controller with it. coral are all happy.
Trustpilot
2 months ago
1 month ago