Regal 53 SC Owner's Manual page 487

WASTE/TOILET SYSTEM:
1. Pump out waste holding tank, fl ush the tank with fresh
water and pump out again.
2. With non-toxic propylene glycol antifreeze in the fresh
water tank, operate head until antifreeze fl ows into bowl
of head. Allow time between fl ushes for the vacuum to
build up.
3. Operate macerator until antifreeze has a steady
fl ow coming from the discharge fi tting. Pour non-toxic
propylene glycol antifreeze solution in head and fl ush
head as needed to produce enough fl ow to winterize the
macerator.
4. Leave at least 2 gallons of non-toxic propylene glycol
antifreeze solution in the holding tank during storage.
NOTICE
USE A SPECIAL NON-TOXIC ANTIFREEZE
IN THE FRESH WATER & WASTE SYSTEM
WHICH IS AVAILABLE AT RV AND
MARINE DEALERS.
DO NOT USE AN AUTOMOTIVE
TYPE ANTIFREEZE.
IT CAN BE HIGHLY
POISONOUS AND CORROSIVE.
WATER SYSTEM-FRESH
1. Turn on the fresh water pump switch.
2. Open all faucets including transom shower and allow
tank to empty.
3. Drain the water heater; shut off water pump switch.
4. Mix nontoxic antifreeze with water in accordance with
the manufacturer's recommendations.
5. Pour solution into the fresh water tank.
6. Turn on fresh water pump switch.
7. Open each cold water faucet one by one beginning
with the one furthest away from the tank and purge the
system until a steady stream fl ows from the faucet. Then
close the faucet.
8. Repeat step 7 for hot water faucets.
9. Shut off water pump switch.
10. Pour a quart of non-toxic antifreeze into shower drain.
Run the shower pump until a steady stream fl ows from
the discharge fi tting.
11. Leave at least 2 gallons of antifreeze solution in the
holding tank during storage.
10
Chapter 10