I'm trying to set up a large daily auto water change system for my 600 gallon tank and due to the lack of options locally for high output reverse osmosis systems (I'm not located in the United States) am looking to assemble my own. I'm using this diagram as the foundation of my build:
I am thinking of having a dual membrane 400gpd system for a total of 800gpd, but due to limitation of parts may end up doing a dual membrane 200gpd or single membrane 400gpd system instead. However before I do this, I have some questions.
1. The largest flow restrictor available to me locally is 1500cc. Based on some research I did, an 800cc flow restrictor is only good enough for a 100gpd system. To get around this problem, can I split the waste line into 4 lines, each with a 1500cc flow restrictor so that there is a total of 6000cc? If I go with a 400gpd system then I would just split it into 2 lines, each with a 1500cc flow restrictor for a total of 3000cc. Can I combine the lines back after the flow restrictors to form a single drain line? It would look something like this:
2. I would also like to install a booster pump, but am unable to find one available that is rated for 800gpd. Is there a way I can get around this by installing 2 booster pumps in parallel or am I limited to 400gpd?
3. The booster pump I am looking at states in the specification that inlet pressure is 30psi, operating pressure is 80psi and pressure bypass is 140psi. Does this mean that the booster pump automatically switches off when the rodi barrel is full and the float switch is up and psi exceeds 140psi, or do I still need to install a separate pressure switch? For reference here is the spec sheet:
Thank you very much for your help!
I am thinking of having a dual membrane 400gpd system for a total of 800gpd, but due to limitation of parts may end up doing a dual membrane 200gpd or single membrane 400gpd system instead. However before I do this, I have some questions.
1. The largest flow restrictor available to me locally is 1500cc. Based on some research I did, an 800cc flow restrictor is only good enough for a 100gpd system. To get around this problem, can I split the waste line into 4 lines, each with a 1500cc flow restrictor so that there is a total of 6000cc? If I go with a 400gpd system then I would just split it into 2 lines, each with a 1500cc flow restrictor for a total of 3000cc. Can I combine the lines back after the flow restrictors to form a single drain line? It would look something like this:
2. I would also like to install a booster pump, but am unable to find one available that is rated for 800gpd. Is there a way I can get around this by installing 2 booster pumps in parallel or am I limited to 400gpd?
3. The booster pump I am looking at states in the specification that inlet pressure is 30psi, operating pressure is 80psi and pressure bypass is 140psi. Does this mean that the booster pump automatically switches off when the rodi barrel is full and the float switch is up and psi exceeds 140psi, or do I still need to install a separate pressure switch? For reference here is the spec sheet:
Thank you very much for your help!