Waste products can harden and can block the open drain.
Open drain or collector means ,collector and drain terminal of BJT and MOSFET will be left open during implementation/fabrication.They will not be connected from Supply Vcc or VDD.
Which drain you trying to open?
An open drain has no covers while a covered drain does.
To open a tub drain, you can use a drain key or pliers to unscrew the drain cover counterclockwise. Once the cover is removed, you can clean out any debris or hair clogging the drain.
One way to open a slow kitchen drain is by using a plunger on the drain. If the drain is still slow put some baking soda and vinegar in the drain to loosen any debris that remain in the drain.
There should be a drain valve where you can hook up a hose and then open the valve to drain.
Is this a sand filter? How many valves control the flow of water? It appears the b/w valve is defective.
All dishwashers are self draining. If it doesn't drain possibly the drain or bottom pan filter is blocked - or there is a problem with the pump.All dishwashers are self draining. If it doesn't drain possibly the drain or bottom pan filter is blocked - or there is a problem with the pump.
Clear
Open
Not a problem if you only lost an ounce or two, but if you drained a lot, simply go ahead and drain the rest and refill it with the correct amount of fresh oil. If I knew what model I could tell you how much to add.
To open the kitchen sink drain, locate the stopper or plug at the bottom of the sink and remove it by twisting or pulling it out. This will allow water to flow freely down the drain.