Hi Jess,
I used one on my current tank for almost a year.I had it hooked to a mag 12 pump(my return).I think they are great for the price.You will loose some flow,due to back pressure,but I don't think it is as much as some suggest.I would try & improvise some type of fine screen over the intake of your pump,to prevent any tiny particles getting drawn into the SCWD.During the last couple of months of use,I did see the output fall considerably-I probably needed to do a vinegar soak to remove deposits.I was switching to a Redsea wavemaker,so never got around to it.All-in-all,I think very good product.I have a brand new one sitting around if you're interested in getting one.You can have the old one for free,if you want to just hook it up & see what you think.HTH,regards,Darcy