Yeah I would expect the bottom of the bucket to collect alum, but hopefully it won't plug up the intake.

But I see the issue you pointed out is I would need to confirm most of the alum is dissolved by the time it exits the nozzle. It would be traveling through 20' of suction hose, the pump, and 20' of discharge hose. I have another 300' of discharge hose if more "time in water" is needed. I assume a gallon of water can only hold xx grams of dissolved alum, and no amount of agitation can make it hold more. The key may be to run the pump near the max of 158 gallons per minute.

Does your suction strainer covered with window screen not pick up undissolved particles in the slurry? Is your system able to only spray solution without any undissolved particles?

thanks!

edit: found this on in the web - perhaps this is the "glue" you mentioned: When dissolved in a large amount of neutral or slightly alkaline water, aluminium sulfate produces a gelatinous precipitate of aluminium hydroxide, Al(OH)3. In dyeing and printing cloth, the gelatinous precipitate helps the dye adhere to the clothing fibers by rendering the pigment insoluble.

Last edited by Redonthehead; 03/15/18 01:26 PM.
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