I know the general consensus is to change out your reservoir completely at least every 2 weeks, and maybe every 1 week.

Someone went into a bit of an explanation on this point, is that while your plants will use some vital nutrients, like Potassium, there are some salts that they will never use, and will build up over time. So, if you didn't change your water you would have a very large build up as time goes on of salts, which could damage your grow ...


I was wondering if it would be a possible solution, to use a flush every few days, such as Dutch Nutrients Clear, to manage the salts, to allow you to run for longer periods of time without switching reserviors completely. This may help conserve resources, especially on large systems. Love to hear some input on this!

http://www.dutchnutrientformula.com/clear/clear.html

I think this is one of many things that are personal preference with no clear right or wrong. The prudent approach is to change the res regularly and that's what I do.

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http://www.rollitup.org/showthread.p...bubbles+ponics

it would probably be better to just change the water. other shit will get in there

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http://www.rollitup.org/aerogardener...-new-grow.html <<<special kush#1 grow FLOWER

With small sytems it is more expensive to test thw levels of each micro ans secondary nutrient weekly, yet alone the micro nutrients that it is to jsu pay for a reservoir full of new nutrients. The typical reagent cost for each test is about 25 cents. With twelve tests needed that is $3.00, plus the depreciation on the test equipment of say $3.00. So that means spending $6 plus calculating amounts of each chemical nutrient just to save say $3 worth of nutrients. Testing and adjusting is really only practical on large scale systems such as commercial green houses with 1000 gallon nutrient tanks etc.

Figure with methods like the Lucas method you are changing the nutrients when you have added as much nutrient oncentarate asyou opriginally used. That maens you have the potentail of having up to double of the desirable level of some subsy tances if none are atken up by the plants. Double levels of micronutrients is really not that bad, but double levels of other nutrients is getting to the dangerous level especially if you are already running a high EC to begin with.

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heres another product that can be used to clear out salt build up

http://www.generalhydroponics.com/ge...lorakleen.html

Woah, just another snake oil product to milk the pot grower of more money. Just look at its description. It is formulated to dissolve dried up fertilzer. Gimme a break. Water will dissolve dried up fertilizer. It can be used as a flushing agent. So can water. It leads to balanced nutrients. Sure drain your system put some in and rinse your system and your next batch of nutrients will be properly balanced. However do the same thing without the rinse and the results will be the same. It does not even claim to unclog nozzles or emitters. Checked over 20 sites listing an MSDS for that product and all the sites are closed. At most it will be a mild surfactant (soap) or such addition to warer that provides negligible benefit but allows them to be selling a product rather than straight water. No where does any of the literature stae that using it in nutrients that have had nutrients added back will become balanced again if you add Flora Klene.

If you have a problem with dried fertilizer residue around your reservoir edges or on your pumps or fittings relix ze they are likely calcium carbonate and any diluted acid will quickly dissolve calcium carbonate. Other fertilizers just use wrm or hot water.

I thought GH practiced better business ethics than AN. Apparently not.

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Ba da, ba da, Boom! It is as simple as that. Ba da, ba da, Boom!

General Hydroponics has all their MSDS on their website, here

http://www.generalhydroponics.com/genhydro_US/msds.html

Can't get any of the PDF documents to open and I have the full PDF Suite on my computer. Computers can be finicky but it is strange that all the other PDF documents I try open up just fine.

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I convereted it to text in case you wanted to view it. I couldn't find any ingredients in it so i'm not really sure what its used for.

I'm getting really interested in making my own nutrients. It seems like I could save lots of money real fast by just mixing my own

Attached Files

Flora_Kleen.txt (10.0 KB, 4 views)

Absolutely nothing listed. Typical of preparations from out side the country. They skirt disclosure any way they can. Sad display of ethics. When they and the AN owners are extradicted and jailed I will laugh, a lot.

Considering the very low pH of the chemical added, I would venture to say it is merely a cheap acid and water. The acid will break down calcium carbonates. That is the white residuethat builds upon yourpump misters, emitters etc. Any place that is a little waamer do tofriction orheat from power (pumps, heaters) will gather calcium carbonate prcipitates.

Likely it is just a cheap acid such as hydrochloric acid diluted with water as there isno reason to use an expensive acid. When you put acid on caclium carbonate it fizzes (efferevesces)until it is dissolved. Diluted vinegar will accomplish the same task cheaply.

Sorry, but I spell pretty poorly.

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Ba da, ba da, Boom! It is as simple as that. Ba da, ba da, Boom!