2x the container volume is nowhere near enough to flush bound nutrients. We can't be sure if it was a one time overfeeding or chronic overfertilization. Therefore, IMO, 5x is much better at disolving things and taking them with it. Adjusting your pH for flush water is counterproductive if using very low ppm water. The R/O or distilled water acts as a solvent and will quickly go from anywhere between 5.5-7.5 to whatever your soil is. The change is nearly instant and will not affect the rootzone.WOW PEOPLE just give the guy a strait answer listen to me if your in a soil or soilless mix then your pH needs to be 6.2-6.8 going in and coming out after doing a flush. If your tap water is to high get pH down if its to low get pH up and make it right before using. BTW You use 2 times the amount of water that your pot holds for example 3 gallon pot = 6 gallons of water for flushing this water needs to be about 6.5 going in from the top of the soil and when your done it will be 6.5 coming out if its not dump more water in it make sure this water sits 4 at least 24 hours b4 you use it. After you are done follow up with 1/4-1/2 strength nutes id say 1/2 gallon for a 3 gallon pot then let it dry really well before you water again all water must be 6.5 going in and nutes will lower water and soil pH so be careful hope this helps
+rep would be nice thanks
just saying im not going to have to dump 25 gallons of water into my 5 gallon bucket for a flush maybe on a bad day 15 gallons but 25 just sounds a little overkill to me not to mention it would take 3 hours to do it2x the container volume is nowhere near enough to flush bound nutrients. We can't be sure if it was a one time overfeeding or chronic overfertilization. Therefore, IMO, 5x is much better at disolving things and taking them with it. Adjusting your pH for flush water is counterproductive if using very low ppm water. The R/O or distilled water acts as a solvent and will quickly go from anywhere between 5.5-7.5 to whatever your soil is. The change is nearly instant and will not affect the rootzone.