I've used phosphoric straight as a soak, rinsing well w/ clean water after - works well and the solutuion can be used over and over til it's sludge - another readily available rust remover is washing soda [sodium carbonate] from the grocery store laundry section see the details here - works great and environmentally friendly

Bill

Moved over to the Passing Lane

"When we tug a single thing in nature we find it attached to the rest of the world" John Muir
"When we tug a single thing on an old truck, we find it falls off" me
Some TF series details & TF heater pics & Rust-a-holics Unanimous parking lot