How to use kelp products?

[Ray]

In the case of KelpMax, it is to be used at 1:256 (1 tablespoon/gallon), no more often than every three weeks - I recommend monthly.

Use it at a greater dilution, and it likely won't do much. Use it at a higher concentration, or more frequently, and you may end up with deformed flowers. That's true of all hormone-containing products, and fortunately, is reversible, by merely stopping the overdosing.

I prefer to add it to the fertilizer solution, but it can be applied separately.

Like you, I have a dosing pump for the fertilizer, so I replace the watering wand with an Ortho Hose End Sprayer to add "extras".