Search results

High pressure aero requires a water pressure of no more than 100psi, air atomising nozzles no more than 40psi air pressure.

If you arent using RO water you will likely have enough sulphate in your base water. If you use tap water, the water company will usually provide a quality report which listts the elemental content. Excessive mag can cause issues with potassium especially in a recirculating res.

The type of aero you are thinking of uses siphon fed air atomising nozzles. An air compressor tank, technically a receiver, contains only compressed air. An accumulator contains compressed air and water which are separated by a bladder or diaphragm. Water is not compressible, when you pump water...

If you have a piece of coco mat under the puck you can just drop the seed down the hole.

I wouldnt recommend the standard Amazon. The root chamber is small (50L tops) but it takes up a fair bit of vertical space with the res being underneath.

My guess is they used ammonium sulphate to increase S, the NH4 was more a consequence of the choice of chemical than an elemental target.

Could be potassium nitrate, thats avialabe prilled

I wouldnt recommend using the 5-12-26 as a sub for the 7-15-30. The 7-15-30 uses ammonium sulphate to provide a big chunk of the N and the sulphur boost.. You could amend the 5-12-26 with additional ammonium sulphate but it will be 30% light on P and K compared to the 7-15-30. The main problem...

lol, converting gals and litre is confusing, its easy to trip up. I`ve editted the post above to reflect the dose should be ml per Litre not per gallon. If you want ml per gal simply multiply by 3.785. The calculations were just for the jacks and calcinit, no additional epsom. To make up...

Easy enough to figure out. 2lbs is 907.185g, when dissolved in RO and topped up so it s exactly a gallon (3.785L) you will have 239.6g of jacks in each litre of stock (907.185g/3.785L) The stock is 1: 239.6 Divide the 239.6g by 1000 and that tells you 1ml of the stock will contain 0.2396g of...

Jacks has a lot of Mg without the epsom but you can combine it in a 1:100 jacks stock. At 1lb/gal its is close to 1:120 but epsom is very soluble at 1130g/L @ 20c

You should be ok with a 1: 200 jacks stock as long as its not kept below 20C/68F. The calcinit solubility is no problem, 1200g per litre @ 20C.

Stock solutions should be made very accurately to ensure repeatable results. Weigh 1000g of RO, pour it into a clear container and mark the level. Tip it out, add 100g of jacks to the container and add RO up to your 1L mark. Wait for the chems to dissolve completely and then top back up to your...

The manufacturers will have access to labs to test their product so what they state on the bag should be correct, subject to tolerances. If you buy the chems from ebay and they come in plain ziplock bags, all bets are off :) An EC or TDS meter cant measure elemental ppm so you have to trust...

I use stock solutions to make up nutes but i use weights to calculate the elemental ppm of the formulation. For example, my calcium nitrate stock consists of 500g of chem, dissolved in 4L of RO and then topped up to exactly 5L. I know 10ml of the stock contains the equivalent of 1g of calcium...

Hydrobuddy only makes a guess at the EC. Directly comparing elemental ppm and meter ppm is not a good idea because meters measure EC (electrical conductivity and then convert it to ppm. 1g of calcinit in 1L of pure water at 25C has an EC of 1.2. The elemental ppm of 1g of calcinit in 1L of pure...

If you dont have money to spare you shouldnt be contemplating AA. Its not exactly a method i`d recommend for newbies. The last time i looked, everyone on the site is free to choose what they share, I have never refused to help folks where i can or share information (apart from AA nozzle model...

I guess all of the info i provide must be BS but it seems you dont mind using it on OG as your own, amazing how you came up with that idea of using a fabric root chambers to provide free drainage, root pruning and evap cooling. Buying and trying nozzles is expensive, you cant send them back if...

A universal, guaranteed to fit all, AA nozzle doesnt exist. I use different nozzles in different chambers, they are not the same type or even made by the same company. Everyone that has ventured into AA has had to make their own decision on which nozzles to use. At best its an educated guess...

The chambers have two 16ft long slots in the top with garage door brushes on each side to stop the plants falling over and keep the light out.The mesh gives the roots something to anchor into and prevents them falling down into the chamber. Plants can be placed anywhere in the slots so its more...