7cleaning and winterizing 8 specifications – SeaLand DHT-L Series Holding Tank User Manual
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Dometic Holding Tanks
Hose Installation
7
Cleaning and Winterizing
8 Specifications
A small amount of water remains in holding tanks at all times, so it is good practice to rinse a holding
tank completely after contents have been discharged .
1. After initial pump-out, add holding tank deodorant or cleaner to toilet bowl, and flush with water.
2 . Continue flushing and pumping out tank until holding tank discharge is clear .
Materials
Holding tank:
polyethylene; 6 .3 mm nominal wall thickness . Natural color .
Fittings:
polyvinyl chloride, ABS. White color.
Sealing grommets:
cross-linked EPDM rubber/polypropylene . White color .
Dometic DHT-L series holding tanks are pressure-tested to 30 kPa (0 .3 bar, 4 PSI) .
Use only propylene glycol freshwater antifreeze to winterize the holding tank. Make sure the
antifreeze does not contain alcohol.
1 . Pump out the holding tank .
2 . Thoroughly flush system with fresh water before adding propylene glycol freshwater antifreeze
to the holding tank .
7.1 Cleaning
7.2 Winterizing
Model
Capacity
L / US gal.
Empty Weight
Kg / lb.
Full Weight
Kg / lb.
Dimensions
mm / in.
DHT42L
42 / 11
5 .4 / 12
47 .9 / 105 .5
460 x 350 x 348 / 18 .1 x 13 .8 x 13 .7
DHT61L
61 / 16
7 .7 / 17
69 .4 / 153
660 x 350 x 348 / 26 .0 x 13 .8 x 13 .7
DHT88L
88 / 23
10 .2 / 22 .5
98 .9 / 218
800 x 400 x 388 / 31 .5 x 15 .7 x 15 .3
DHT110L
110 / 29
14 / 30 .9
125 .9 / 277 .4
1200 x 350 x 348 / 47 .2 x 13 .8 x 13 .7
DHT137L
137 / 36
14 .5 / 32
153 .3 / 338
1200 x 400 x 388 / 47 .2 x 15 .7 x 15 .3
Note
If a clamp screw is slightly magnetic, it may be either a lower grade of stainless steel or
nickel plated .
Avoid clamps with nickel-plated screws that are susceptible to corrosion. Use 100 percent stainless
steel clamps .