Recent content by Macroman

Older RO and commercial RO systems use different materials. They normally are higher pressure than city water. The sediment filters and the carbon filters do not remove the larger ion complexes. Normally the hard water is softened before it enters the RO membranes. The well water in the...

The pressure variations in the pump would not cause problems in dosing near the pump. The solution can migrate into magnetic area of the pump and precipitate out. There is very little movement of liquid in and out of this area. When using magnetic drive for polymer liquids the material can...

The Sump is just an Eshopps RS-75, but I am expanding to add a Refugium tank. The Skimmer also Eshopps S-120 and rated for up to 120 gallon. Therefore the skimmer is over rated. I think there is alway only a portion of the water skimmed as the pump on the skimmer is much smaller and part fed...

I must admit I am a little more picking on these things. I am a chemical engineer (polymer) so pumps can be every expensive. Micro sells a line of small magnetic drive pumps made of SS and teflon. I have used these for 40 years. http://www.micropump.com/ I want a reliable system and do not...

The trouble is unless you measure the flow accurately you have no idea what the pump is putting out. You may buy a 500 gph pump and only be getting 300 gph. Most Reefers I have talked to say you need to oversize some. I am not sure what you mean you do not need to do more than the skimmer is...

Certainly the Hygger and the Jebao are the same pump, both companies are from the same general area of China (near HK).

Coral, I am just setting up my first reef tank. It has been 25 years since we had a tank and these were fresh water. We raised African cichilds. This Rio was the unit that came with the system and served for the tank for a number of years, but I am changing the sump and adding a chaeto...

I can not find an IM pump in the right size range. The vectra pumps are too expensive. The Reef octopus is too big for that size. My sump is only 3.5" wide.

I was a little taken back by the reviews. Good to know.

Unfortunately these pumps will not fit in my sump.

I bought a system off a BAR (55 g corner curved face), he was using a 960 gph Rio but it had died. I took apart and it was too far gone to repair. The although the motor worked the impeller, shaft and part of the housing were shot. One of the best rated AC pumps in this gph rating is the...

You need to watch the drinking of RO water. As a PhD chemist I have run large RO and distillation units. If you remove all the minerals from your water then the solvating power of the water will remove the minerals from your body. For example highly RO/DI water will remove the metal atoms...