I think its silt and household waste depending on what type of pipe your talking about. i think algae might grow in some depending on the conditions.
Scorpions can get into drains through open pipes. Make sure all your pipes are covered properly and are not broken.
A plumber
a plumber
I had a water pipe break on a Friday afternoon, when I was expecting company the next day. I called Drains N Pipes and they were able to come out and repair my pipe immediately. The plumber they sent was very nice and had my pipes repaired and was out the door in under an hour. The rate they charged was fair and I am very happy with their service. I will be recommending Drains N Pipes to all my friends.
The drain metal pipes are usually coated and galvanized because of the hard water.
toilets and drainage pipes and drains and manny more
Lag
Kitchen drains are usually larger in diameter compared to bathroom drains. This is because kitchen drains need to accommodate larger debris and handle higher volumes of water flow.
Clogged drains are caused by the accumulation of sticky material in the water pipes. Many times stuff like hair, food, plastic pouches.. gets stuck in the pipes and starts accumulating. Because of this the water from the kitchen or shower sink takes time to drain. Many times the drain pipes emit foul odor. Once the pipes are blocked, either the water stops draining from the sink or the debris starts coming out of the sink and toilets. The clogged water may also start leaking and also rust the pipes.[Source:A-General Plumbing and Sewer Service]
Lag
They are secondary drains that work in tandem with the primary pipes to prevent overflows.
The shower gurgles because the water is going down the pipes.