The black flush you can blow some air in it and that should get any water out it's only one line right to the tank. Then put the pink in the unit after that bleed pressure down by opening a cold tap remove the screen off the CW fill inside you will see a plunger push the center in gently you should see fluid coming out if you do this under pressure it will blow the O-ring off and it will leak, don't forget to drain HWH and by-pass it
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Mark Anderson - Nebo NC - western NC - RV Restoration tech - 9 Doggies - Outdoors person
1990 33ft Wilderness Cimarron 33X
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