:lol:
I tend to doubt you'll drain the ocean filling that 30 gal. I'd say, of course use the ocean water. You can't beat mother nature. Some people run ocean water though a filter but I really don't think that is necessary unless the water is unusually turbid. I would suggest running carbon when using it as it can remove any trace organic contaminants that may be leaching into beach water. Mixing ASW and NSW is fine. Just make sure to match the salinity.
I tend to doubt you'll drain the ocean filling that 30 gal. I'd say, of course use the ocean water. You can't beat mother nature. Some people run ocean water though a filter but I really don't think that is necessary unless the water is unusually turbid. I would suggest running carbon when using it as it can remove any trace organic contaminants that may be leaching into beach water. Mixing ASW and NSW is fine. Just make sure to match the salinity.