Im currently using Growth Technologys PH down adjuster but now that Im going to be growing in soil with all organic nutes Im wondering if synthetic PH balancers are an issue. So far Ive found this: [Spam]
But it contains 50% citric acid which allows Bacteria and moulds thrive well on . So my question is, is an organic PH adjuster necessary in an all organic grow? Would the synthetic PH adjusters have any negative effects when mixing with Biobizz nutes?

Unless your water is virtually caustic, your compost should quite happily buffer it down. pH down of any description can adversely affect the microherd, synthetic ones being the worst. You want to look after the microherd in organic growing....

From OT1 ---- http://www.uk420.com/boards/index.php?show...st&p=144418

BluePixie My tap water PH is approx 7.8 after 4hrs in the open for chlorine to evaporate & before watering/feeding I always PH down to 6.5 & I never have any problems. Although many people have told me they do not bother with PHing Ive had silly problems with the PH factor & never again.
If you were me & was determined to watch the PH level what would you do?

Mmm, well my pH is around 8 out of the tap too and I don't pH down. I don't worry about chlorine either and water straight from the tap, mixing hot and cold water to get a nice temp. This follows from OT1's advice

I don't think any problems I've had are pH or chlorine related. My understanding is that chlorine is destroyed within a few seconds of coming into contact with organic matter so the nutes or the soil should deactivate it before it can damage plants or microherd.

UK store bought composts are designed to buffer pH downwards hence no need to pH down.

You are in the UK and growing with allmix right? Fill in yer profile......

e2a - I do run my water through a britta filter (not a softener! that's important) for seedlings only. This removes chlorine, and replaces some of the temp hardness with hydrogen ions. This results in a temporary reduction in pH to about 7ish. I did this all the way through my first grow and decided I couldn't be arsed after that.

Yep im from U.K.

I guess it cant hurt for me to try not letting it sit out or PHing Ill give it a go & see what happens. Thanks for all your help BluePixie.