All bugging is well tolerated by this old man. You teach me so much.
Couple of things about RO/DI units. Even though you have a 28 gallon system you will want...
1. A 75 or 150 gpd (gallon per day) unit. The reason being, the cost between a 50, 75 and a 150 gpd is negligible. You will thank me later on for my wisdom. We do not recommend the 100 gpd membrane because it has a lower rejection rate (96% as opposed to 98%) than the 50, 75 and 150 units. The higher the rejection rate the better the end product, the 0 TDS water you require for your reef.
2. There’s no need to pay more than about $150 plus shipping. Don’t cheap out this purchase AND don’t pay much more than the $150. All RO/DI unit parts are made by the same manufacturer and companies assemble the parts, slap their label on them and price them as high as 3 or 4 hundred dollars, yes as much as $400 for the same unit you are going to buy for about $150 plus shipping.
3. You will want a 5 stage unit. Better pre-filtering = longer life of the membrane.
4. You will want to get a TDS meter with the unit.
5. Buy the unit from a company with a good reputation that will help you in time of need and is easily available to you.
With that said, we use the 5 stage unit from Air Water and Ice with the 150 gpd membrane in our aquaculture facility with complete satisfaction. The same unit comes with a 75 gpd membrane which I recommend for the average reefer. It’s cost is a little lower than the 150 gpd unit. Everything is the same with the exception of the membrane and the price.
Check out the Typhoon 5 Stage here -
5 Stage RO/DI Unit
Thanks,
Dick
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