Mine used to be 0.6 up to 0.8 out of the tap. I sent Dutch Pro an email and Rico recommended their grub based on the ph of the water NOT the ec.wutang wrote: ↑Mon Aug 21, 2023 7:34 amI used canna and I'm in hard water 0.6ec out the tap. When I get to flower that's when I start to see all sorts of issues. So I'm wondering whether that's half my problem. However I've adjusted a couple of other factors on this run so I'll see what comes. Thanks for sharing that small point, however I've got like 10l of canna a and b to get through so I'm not changing anytime soon haha
I'll have a mooch for the email later if you're interested.
- I found it...
"It has to do with the pH of the products.
The “hard” water was the base feed developed according to Amsterdam tap water as of 1985. The pH of the hard water base feed is around 1.0. When you use this with tap water of around 7.5 - 8.0, the nutrient mix comes out at like pH 6.0.
The “soft” water was developed for regions with a low pH in tap and well water. At first, this was developed for the UK in 2009. Most of their water comes out at pH 7.0. The pH of the nutrient mix would drop too much with the regular hard water. Therefore we adjusted the pH of the soft water base feed to 4.5. This will help growers to get their nutrient mix close to pH 6.0 again.
To come back to your question. Do you experience the pH of your nutrient mix to be under 5.0 after mixing the nutrients and before pHing? If so, then I would recommend the soft water. If not, then you are perfectly fine with the hard water version.
This is basically the history of the hard water and soft water base feed. Both use the same ingredients and are based on the same science. They just differ in pH to provide growers with a better choose."
My mix was hitting ph3 and I was using LOADS of silicon to bring it up to 6, then we chatted more and worked out that If I mix the A in 1 bucket of 10L water and the B in another 10L bucket, let them sit and then slung them into a 20L empty bucket, the ph was hitting 6 bang on.
SO I ended up using the normal DP grub in that house and stopped having them niggly little deficiencies here and there.