GREY WATER TANK SIZE

Question edited for clarity.
Question moved from Sewing Machines category.

This says 1,905 kilograms

https://www.uship.com/ca/listing/880767229/Aljo-Ally-by-Skyline-Travel-Trailer-1989/

The easy way to weigh is put it on a weighbridge

More here

https://www.google.com/search?q=1985+Aljo+Aly+trailer+weight

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At the Dump Valves, Large and Small Tubes, open the one for Grey Water only which is usually the small tube. Pull the Handle of that one at a Dump Station of course. Grey water should also not be dumped anywhere else but a Dump Station.

the grey water is your shower and sink drain tank. the black water is your... you know. the two combine to the dump that's held together with a bypass for grey water to flow into the black tank and vice versa so you can flush the black tank further. all of this comes out the end into your dump out for black and grey. If your talking about white water (potable) holding tank, filling this drains through the use of it, run the shower outside or hold flush down until it drains. otherwise. the hotwater tank will drain with the anode when you regularly change that once a year as directed by people who camp once a year - change that anode -

There should be a compartment on the outside, typically where most utilities are connected, that will have the drain connectors for black and grey water. Black is for your toilet, grey is all other water water. Look for the labels to ensure you have the correct one. Depending on the manufacturer, it will be either a black, plastic or silver, metal T-handle. Once located, you will pull the T-handle out, approximately 4-6 inches (10-15 cm).

The galley holding tank holds the grey water from the galley.

U SHOULD HAVE A BLACK TANK AND A GRAY. TOWARDS THE BACK WERE U HOOK UP THE HOSE FOR DUMPING U WILL SEE TWO LEVERS ONE IS FOR BLACK ONE IS FOR GRAY. AND IF UR TALKING ABOUT FRESH HOLDING TANK LOOK UNDER NEATH AND U SHOULD SEE A PLASTIC NOSEL WITH A TURN VALVE LIKE WHAT BOX WINE HAS TO PURE A GLASS

If it is a big valve it is your sewer tank drain valve. There is two valves. One is the Black water drain and the other is the gray water drain. the black water drain comes from the toilet holding tank, and the gray water valve drains the shower and sink holding tank.

There is usually a drain valve for each tank could be under trailer in middle some where

Check the fuses in the fuse panel. If all are good then you will need to verify that you have power to the monitor panel. If power is at the panel then the circuit board is bad or unplugged. If you do not have power you will have to trace the wiring until you locate the failure point. Unfortunately RV manufacturers do not publish wiring diagrams.

No repair guides... You have to determine where exactly the leak is coming from. Is it a cracked drain line going into the tank, is it a bad fitting weld or is the tank itself cracked? They are not easy to gain access to and take anywhere from five to eight hours to drop and repair. Not an easy job for someone who may not have experience in plumbing and repairs of this magnitude.