Which is Better? Comparing Piston and Diaphragm Backpack Sprayers

There are two main types of manual backpack sprayers: Piston and diaphragm. But what is the difference? Which one is better? And which one should I use? Read the full breakdown here: sprayerguru.co...
Diaphragm Backpack Sprayer: amzn.to/3TdJ4I0
Piston Backpack Sprayer: amzn.to/4bO8nrD
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