Is all Diatomaceous Earth meant for pool use the same?

Tripotassium phosphate should be an acceptable substitute for trisodium phosphate.

Lithium phosphate (Li3PO4) would also probably work.


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The Sunnyside TSP says "Trade Secret", which is odd, but it is probably TSP.

The Savogran TSP substitute is not TSP

The Savogran TSP is mostly TSP.

Recsupply has a 50 lb. bag of TSP.

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Savogran 10622 Trisodium Phosphate (TSP) 4.5lbs​


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I use Savogran REAL TSP. It works well. I once had to do mold removal from water damaged wall studs and a TSP/bleach solution not only killed all the mold/mildew, the 2x4’s looked practically brand new. One word of caution - do not spill it on any painted or aluminum surfaces … it will destroy both in very short order.
 
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