Changing belt and radiator hoses. Not gonna flush system. Just wondering how many gallons of coolant I need to buy? Draining radiator. Thanks

 

I use a 5 Gal Container which fills between 1/3 and 2/3. So, between one and two gallons.


Unless the customer needs new product, we just reuse the drained.


Since you're not doing a complete flush, I would reuse until the time comes to service the system.


FTW

 

Thanks for the info

 

Found black magnetic fine sand in bottom of reservoir. About a grams worth. Is this the engine casting?

 

I would say yes. And, a Filter may help extend your Water Pump life and Radiator.