Call the contractor and have it fixed. Were they install correctly. Are all the vents leaking or just one? Were they sealed? A properly installed vent shouldn't leak even if it has not been sealed. The bottom edge may be under the shingle instead of on top of it. You should shingle to a point and then put the vent on and shingle on top of the nailing flange from one third to one half of the sides of the vent depending on where it comes on the rows.
If water is coming out from the bottom of your toilet, it may be leaking.
The toilet is leaking from the bottom because there may be a problem with the wax ring seal that connects the toilet to the floor, causing water to seep out.
Your shower door may be leaking from the bottom due to worn out seals or improper installation. This can allow water to escape and cause leaks. It is important to inspect the seals and ensure they are in good condition, and also check if the door is properly aligned and installed. If the issue persists, it may be necessary to replace the seals or seek professional help to fix the problem.
if it is not making any noise,or leaking from bottom of pump. Releif hole is on bottom of pump,if leaking replace pump.
There is a breather plate inside that has a small hole, if I remember correctly that little hole needs to be near the bottom. The plate can be installed upside down if your not careful then oil leaks.
is coolant leaking from engine?or is it leaking from water pump and running down engine and appears to leak from engine
It may be leaking at the drain plug located at the bottom of the pump housing. It may be leaking throught the gasket/o-ring that seal the pump cover to the pump housing. The seal may be installed incorrectly. There may be a crack in the pump housing/cover assembly. You may be able to observe water squirting fron the leak by watching the pump while it is running.
Usually a leaking hose into or out of the water pump (depending on its location), or the water pump gasket.
Under no condition do fiberglass pools have "ripples" on the bottom after they are installed. Of course, the pool could have been damaged in some way, then improperly repaired, before or after it was installed.
Your Kenmore washer may be leaking from the bottom due to a damaged or worn out seal, hose, or pump. It is important to inspect these components and replace any that are faulty to prevent further leakage.
Unscrew the rod and change the seal at bottom end .
A leaking toilet from the bottom can be caused by a damaged wax ring, loose bolts, or a cracked toilet base. It is important to address the issue promptly to prevent water damage and potential health hazards.