Is it ok to put cleaner in gray water tank

Well as already mentioned everyone has their own approach. I never used to treat the grey water tank with anything extra but last year when I started using Walex Porta-Pak for the black tank I became aware of the same company's GW tank treatment called Elemonate. I've been using both for a year now with a dose of Geo in the BW tank in between uses when I service the tanks. Effluent seen through the clearview adapter I use on my FloJet Waste Macerator pump shows that once I'm done servicing the tanks there's not much left in each tank but clear water. :B