Weso

Hillyard Nutra rinse is the way to go. Designed to neutralize the corrosive salts in floor strippers before top coating.

Know anyone who works at a place with boilers? Before they create steam, the water is run through a deaerator and then treated with chemicals including some fine polymers all designed to keep the pipes free of corrosion and other nasties. Your friends can bleed off the treated water before the boilers and fill your 5 gallon jugs so you don't have to bother them for awhile.