1. If there is glue on the water pipe, you can use a hair dryer to blow it, adjust it directly to the hot air gear, the glue melts, or shrink through heat expansion, because the glue will weaken after heat, and then pour into boiling water, the glue on the water pipe can be washed clean for a few minutes, and finally wipe it with a rag. This method consumes more hot water, but does not damage the water pipe, and can be used again in the future.
2, if you can't, you can take the simplest and most violent way, directly saw. However, when sawing, we must pay attention to the fact that we can not damage the water pipe, but it will certainly damage one of the pipes. Saw along the tee connector, then dig out the pipe connected above the tee connector, and then replace a new tee connector.
3, you can also dissolve the glue through some chemical components, such as by brushing acetone solution, because the glue is a resin glue, through this organic solution can be effectively dissolved, and then poured with hot water, you can remove clean.