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Gray Water System
The OP15 gray water tank has a capacity of 17 gallons and is the front most tank on the underside of
your trailer. It collects the gray water from your shower and bathroom sink. Please note that your
kitchen sink does not drain into the gray water tank. Please visit the Kitchen secon of this manual for
more informaon on the kitchen sink drain. You should connually monitor the ll level of your gray
tank using the gauge on the main control panel during use. We recommend emptying your gray tank
when it is around 3/4 full. You will nd the gray water drain outlet on the gray water tank. Please
remember to dispose of gray water safely at dumping staons or other permied outlets.
Only liquid run o from the shower and sink should be drained into your gray water tank. No other liquid is permied to be
drained into the gray tank. It is important to regularly clean your gray water tank as a build up of grease, dirt and soap scum can
impact the funcon of the tank and cause odor. Please see refer to the OP15 Care and Maintenance secon of this manual for
proper cleaning steps and for cleaning and draining prior to storage. Do NOT use bleach to clean your gray water tank.
Black Water System & Toilet
The OP15 black water tank is located towards the front of the trailer on the lower edge of the driver’s
side. It can be idened by the black tank drain valve. The capacity of the tank is 10 gallons and the ll
level can also be monitored using the gauge on the main control panel. We recommend emptying
your black tank when it is at least 1/2 to 3/4 full and aer every camping trip. Emptying your tank
sooner may result in solid waste being le behind in your tank; a fuller tank allows more opportunity
for breakdown of solid waste. All waste from the OP15 toilet is collected in the black tank so please
take cauon when emptying to avoid contact with waste which can carry harmful bacteria. The black
tank must ONLY be disposed of in designated dump staons. At the rear of the trailer is a holding
tube for the black tank drain hose. To empty your black tank:
WATER SYSTEM CONT.
Draining your potable water tanks
Located on each potable water tank you will nd a draining valve at the lowest point of the tank. When packing away the OP15
complete the following process to drain the system of any excess water.
A. Switch o the pump on the main control panel
B. Open the faucet & allow the excess water in the pipe
to drain
C. Close the faucet once all of the water has drained.
D. Disconnect either side of the quick connect
E. Ensure the sink is emped and that the waste water drain hose
is empty before folding it back into the kitchen. Please refer to
the steps in the care and maintenance secon of this user
manual for more informaon on draining and preparing your
tanks for storage.
A. Remove the black tank hose from the storage tube
by twisng the cap o
B. Connect the drain hose to the drain valve by
twisng on to receiver hooks
C. Ensure the other end of the drain hose is directed
into the appropriate dump point.
D. To empty, pull the valve to open.
E. Leave the valve open unl you can no longer hear
liquid waste draining then close the valve
completely. Close the valve at this point
You can also use Formaldehyde-free black tank treatments such as the Camco TST Drop-ins to help breakdown waste and prevent
odors. If you are on-site camping and connecng to a campground sewer we recommend keeping the tanks drain valve closed unl
you need to drain to assisng in purging the tank of solid waste. Please see the ‘Bathroom’ secon of this manual for more infor-
maon on using your toilet.
Warning: Do NOT leave waste in your tank during storage. Always remember to close the drain valve aer draining the
black tank and before removing the drain hose. Your drain hose should also be regularly cleaned and sanized. Do NOT
use bleach to clean your black water tank. Please see the care & maintenance secon for further details on properly cleaning &
sanizing your black tank.