if you can do it just put a hose and back flush it. you can also buy prestone rad cleaner and run that through it, pull hose off of bottom of rad to get most junk out before putting rad cleaner in it.

Answered by hmac300 (expert)
17,749 answers provided

Thanks for your timely response ... I'll give this a try.
Thanks again ... wild41

Response from wild41
1 question asked

IF YOU HAVE LOTS OF MINERAL DEPOSITS FROM THE WATER.....WE HAVE THIS ISSUE IN MY REGION

I'VE PLACED A SHORT 1-2 FOOT HEATER HOSE ON EACH OF THE CORE'S IN AND OUT TUBES

TURN THEM SKYWARD

POUR SOME "CLR" OR A SIMILAR PRODUCT INTO IT AND LET IT SIT A FEW HOURS (OR MORE)

RINSE IT OUT WELL BY STICKING THE GARDEN HOSE ON THE HOSES ONE AT A TIME---ALTERNATING THE DIRECTION OF FLOW THRU THE CORE

"CLR" WON'T EAT THE METAL

THE MEDIC

Answered by CJ MEDEVAC (expert)
6,797 answers provided

Thanks for your input ... will give it at try ...

Response from wild41
1 question asked