There are multiple reasons why your washing machine might not drain. The drain line could be clogged with debris or even clothing, the pump pulley could be frozen, or the pipe that the washer drains into could be clogged.
Bi pipe is a black iron pipe.
bore of the pipe is the internal diameter of pipe but the nominal diameter of pipe is the dia of a circle which is draw through a point which is situates at exactly half of the thickness of pipe or we can say that (outer dia of pipe- thickness of pipe )=nominal bore of pipe.
Pipe bore is the actual minimum inside diameter of a pipe, which is not necessarily the nominal pipe size.
wrought pipe bends means straight pipe bend using rotary draw pipe bender. or pipe bend by any method
Use a Plumber's "snake".
The shower water may not be draining properly due to a clog in the drain pipe, a buildup of hair or soap scum, or a faulty drain mechanism.
The water is sitting in the shower drain and not draining properly because there may be a clog or blockage in the drain pipe preventing the water from flowing through.
Your bathtub may be draining slowly due to a clog in the drain pipe caused by hair, soap scum, or other debris. This blockage restricts the flow of water, leading to slow drainage.
Your garbage disposal may not be draining properly due to a clog in the drain pipe, a malfunctioning motor, or a jammed impeller. It is important to troubleshoot and address the issue promptly to prevent further damage.
Your shower may be draining slowly due to a clog in the drain pipe caused by a buildup of hair, soap scum, or other debris. This blockage restricts the flow of water, leading to slow drainage.
Symptoms of a clogged vent pipe include slow draining sinks, gurgling noises from drains, foul odors coming from drains, and water backing up in sinks or toilets.
Your garbage disposal may be draining slowly due to a clog in the drain pipe, a buildup of food debris, or a malfunction in the disposal unit itself. Regular maintenance and proper use can help prevent these issues.
If by vent pipe you mean the venturi pipe it sounds as if it is plumbed backwards, in a spa jet you have 2 feed conections, one for water (the bottom pipe) and another for air (top pipe) if plumbed incorrectly water will back up out the venturi line (vent pipe)
Normal wear and tear from usage, freezing and splitting, unsleeved pipes with a rock or object against it wearing into the pipe.
A slow draining bathroom sink that is not clogged could be caused by a buildup of debris, mineral deposits, or a partially blocked drain pipe. Regular cleaning and maintenance can help prevent this issue.
The water in your shower may not be draining properly due to a clog in the drain pipe, a buildup of hair or soap scum, or a faulty drain mechanism. It is important to address this issue promptly to prevent further damage or inconvenience.