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What is a 'drop' mate ? How much ?? I am in UK. So i would use approx 9/10 drops per US gallon (is a US gallon = 3.78 uk litres) Cheers

I have had mant successfull grows but since had Pythium once it has never gone away. The system when growing without probs blows NFT away. Hell - I do not want to use h202. ympb - link does now work but think i can see beneficials, i want a total sterile system. Need a schedule for 4.8%...

Can anyone help me out here please. Got some 4.8% Chlorine but not sure on dosages. Not having much joy with 35% peroxide, it just keeps returning..... Cheers

Hi All Been battling this last 3 grows BUT still comes back. Got chiller/lightproof/spotless grow/huge air pump/stones and been adding H202. It has improved some what but new growth just starts rotting/going brown. I have RDWC with 100l system in total. I want to try Chlorine after...

I am in RDWC hydro mate.

Not bleach but Chlorine as what is in Flairform Pythoff, dont want any organics as sm-90 and never seen it in UK ? There is a good thread here which shows how it cheaply kills/prevents Pythium - https://www.rollitup.org/advanced-marijuana-cultivation/286022-killing-root-rot.html Cheers

Hi again been reading up and they do Pythoff in 20l bottles. This is stronger at 2.5% Chlorine. It states to be used at 40ml/1000 litre or 0.04/Litre. I have a 100l RDWC so would need 4ml. BUT I have just come across this Chlorine at a FRACTION of the cost, it is 4.9% -...

Hi All Been reading on here from this section that Chlorine can kill/prevent this. I live in UK and we have no Clorex but do have following - http://www.flairform.com/Products/pythoff.htm - This is just 0.5% Chlorine though and expensive ...

Hi Guys from UK I have had Pythium last three grows after YEARS of awesome grows. Tried the lot, strerile system , chiller (67/68f), totally light proof, plenty bubbles and loads of flooming BUT it still comes back ??? I need help !!!! But in UK we have no Clorex but we do have Domestos -...