Replacement Aerator - Brass instead of Plastic? Increase gpm?

rhawke

Bronze Supporter
Nov 27, 2017
261
Houston, TX
One of my 3/4 inch plastic aerators - Pentair 8620150 - broke and instead of getting the exact same cheap plastic version, I was wondering if I should get this brass version. Any thoughts on whether brass could cause issues with my salt water pool? It wouldn't be submerged and and most of the time no water would be in it since they drain out when not in use.


I also wanted to look at options that put more water through, for better cooling. The plastic ones only get like 12gpm for 4 with the filter pressure already at 15psi. I found this fire suppression option. Anybody have experience with that? However, I'm not sure if this will actually spray much at 10-15 psi pressure ... or if it will just gulp the water out without shooting into the air.

And I found this thing with a much bigger diameter hole in the center according to the picture but no specs / data on this.

Any recommendations?
 
One of my 3/4 inch plastic aerators - Pentair 8620150 - broke and instead of getting the exact same cheap plastic version, I was wondering if I should get this brass version. Any thoughts on whether brass could cause issues with my salt water pool? It wouldn't be submerged and and most of the time no water would be in it since they drain out when not in use.


I also wanted to look at options that put more water through, for better cooling. The plastic ones only get like 12gpm for 4 with the filter pressure already at 15psi. I found this fire suppression option. Anybody have experience with that? However, I'm not sure if this will actually spray much at 10-15 psi pressure ... or if it will just gulp the water out without shooting into the air.

And I found this thing with a much bigger diameter hole in the center according to the picture but no specs / data on this.

Any recommendations?
Other than possibly discoloring from the pool water, there is nothing about a pool with a SWG and proper salt concentration that is harmful to pool equipment. The salinity is about 1/3 that of tears and sweat. Yeah, sweat is corrosive because it is also acidic, typically in the 6.2 range.
If you only replace one with the larger orifice the others may suffer as the water will prefer to go through it.

Filter pressure is a measure of how hard it is to shove water through it, not the pressure in the pipe after the filter. The higher the pressure the less water will be available to the spray heads. You need to increase flow.
 
Other than possibly discoloring from the pool water, there is nothing about a pool with a SWG and proper salt concentration that is harmful to pool equipment. The salinity is about 1/3 that of tears and sweat. Yeah, sweat is corrosive because it is also acidic, typically in the 6.2 range.
If you only replace one with the larger orifice the others may suffer as the water will prefer to go through it.

Filter pressure is a measure of how hard it is to shove water through it, not the pressure in the pipe after the filter. The higher the pressure the less water will be available to the spray heads. You need to increase flow.
Yeah I was planning on replacing all 4 if I can get better flow through them. Right now I need to turn the intelliflo pump at 1800 RPM do get these aerators going well and it takes about 230 watts. I figured if I have lower head pressure, I would be able to get maybe twice as much water through with the same RPM.
 
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