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Having 10 ton HVAC systems doesn't mean a whole lot. You could have a need for 8 tons. But an 8 ton unit doesn't exist. So, you have to buy the next largest available size, which is 10 tons. In addition, you need to increase your maintenance schedule when your equipment is used for 10-20x more...

Possible that it's not enough refrigerant. More likely that one of your indoor units is not turning on to let refrigerant in. Your indoor units might be running off a solenoid valve that opens to let refrigerant flow. If that isn't turning on, you'll experience what you are right now. So, it...

I'm sorry I couldn't add on a few other things I wanted to, I had to run out the door. Bear with me here, this is a little long winded, but I hope we can understand each other here. I just want you to see all the sides an engineer sees when designing HVAC systems. To answer your questions...

Alright. So, lets look at an attic in Southern California. 600 ft^2 on the ground, 20' x 30'. 3 ft. tall walls, 30 ft long, x2. Total Wall Area = 180 ft^2 12ft peak of the roof, from the floor, so you've got a roof that is 30 ft long and 13.45 ft wide, x2. Total Roof area = 807.25 ft^2 Attic...

Then why did you post if you do not need to convince anyone?

You are right. The absence of evidence is not evidence of absence. But you don't seem to understand the scientific rigor that this stuff you're peddling never sees. As you said yourself "I have not done an honest A v B". So, not matter what something seems to show or does or does not show...

SweetTooth is correct on the conversion between watts and BTUs. But, you're right in that he has not taken into account any other equipment. Unfortunately HVAC sizing isn't as cut and dry and you are trying to make it. My experience as a mechanical engineer doing HVAC sizing for commercial...

Taking a few assumptions into account, 1/8th tsp of zinc sulfate per 1 gallon of water will create a solution with about 250ppm zinc. Or about 1000x more than you really need in the water you are feeding with. This will not solve your problem. It will make it worse. Unless of course you are only...

I don't know much about the chemistry of these products. I can mix my own fertilizer salts, but I don't make fertilizers. So, I'm not sure what the point of that question was. And my product? What are you talking about? Yes, these two look similar. What gives you the idea that it's mine?

I know your product competes with OSA. And I figured I'd let you know too. I found this product on eBay. It seems to be a professional grade monosilicic acid. It's not only a lot cheaper per gallon, but it's also a lot more concentrated.

So... I found this on eBay: It seems to be this professional grade product. It's a fuck load more concentrated that what you claim and it's cheaper per gallon by a long shot... Seems amusing to me. You guys are just another diluted and marked up product. Like most other cannabis fertilizers.

Temperatures dropping to 3°C is a significant part of your problem. What you also did is add about 20-40g of manure to your plant. Cow manure usually has a NPK of 0.6-0.4-0.5. So, you added 120 mg of N, 80 mg of P2O5, and 100 mg of K2O. Not a lot really. But it helps to work it into the soil...

The acronym you are looking for is "MKP"

No, but I can tell you exactly what's in it. Monopotassium phosphate, potassium hydroxide, and phosphoric acid. It's just a generic PK additive. Nothing special really.

And if the container doesn't have holes, add some and you'll be fine. Are you going to buy soil and fill these? I would consider getting a soil test done on what ever you use. It should give you a strong idea on what you do or do not need to consider when it comes to fertilizer.

If you plant in the ground, make sure you get a soil sample analysis. That will help you determine how to fertilize your crop. Once you've got a soil test on hand, come back and we can talk about how to go about building a fertilizer profile for it.

With a 10°C temperature change, you may see up to a 0.2 shift in pH.

Waiting for chemical equilibrium to occur is always a good practice. So, you're definitely doing it right. I think for our application, this is a good outlook to have. We are agreed!

Then what point are you making? Because you have not been clear at all.

Yes, a feed solution for plants is going to be in a state of change while it is being used. But, before that point, during the preparation of the solution, chemical equilibrium is reached. And that is the only reference point we have unless we are using a recirculating hydroponics system. So...