i lot of people say 2 change the water , but keep an eye on the ph and the water colour , just top up as needed , the the end of a grow just scrub every thing , lazy i know , i normaly change it a bout 3 to 6 times, that s a resivour system, never had a problem ,
...gas... Reviewed by ...gas... on . Whats the most efficient system? Hey guys i have a drip system and its ok but its a pain in the ass for me to have to change the water in a 24 gallon system. Is their any other systems out their that you guys would recommend. I really want to purchase another system soon before this grow is done, so to the vets out there please help me out.;) Rating: 5