Your anti-siphon valve may be leaking from the top due to a damaged or worn-out seal or gasket. This can allow water to escape through the top of the valve instead of flowing through the proper channels. It is important to replace the faulty seal or gasket to prevent further leakage.
A siphon breaker valve is a small paddle operated butterfly valve designed to automatically control the priming and de-priming of the discharge. It is mounted on top of the discharge pipework siphon loop.
If you notice the fill valve leaking from the top of your plumbing system, you should immediately turn off the water supply to prevent further damage and contact a professional plumber to repair or replace the fill valve.
im guessing someone has told you that you have a 'leaking valve cover gasket'. the valve cover is normally on the top of the engine,above the pistons, sometimes its where you put the oil into. The gasket is where the cover joins with the block.
Could be a couple things, best case is your valve covers gaskets are bad, and worst case is your intake is leaking.
All newer vehicles have an anti-spill ball check valve in the filler neck to prevent major gas leakage if your vehicle should ever end up on its side or top. Makes siphoning difficult...
Probably needs a new valve cover gasket.
If really on top then probably the intake manifold gasket ,study it closely .
If your toilet fill valve is leaking from the top, you should first try tightening the connection where the leak is occurring. If that doesn't work, you may need to replace the fill valve to stop the leak. It's important to address the issue promptly to prevent water waste and potential damage to your toilet.
This could be numerous factors, however, the most likely of factors would be either the TP valve leaking or the hot water heater irtself is leaking (burst).
Normally oil leaking from the top of an engine is a sign that you have a leak at a valve cover. The cover may be loose or the gasket may be defective. Tighten the valve cover bolts to no more than 5 lb/ft of torque. If that does not stop the leak, the gasket will need replacing.
It is the valve between the top and bottom chambers of the left side of the heart. It stops blood leaking backwards, and allows it to go forward to the body where it is needed. See related link below for more information.
Water may be leaking from the top of your water heater due to a faulty pressure relief valve, a loose connection, or corrosion in the tank. It is important to address this issue promptly to prevent further damage and potential safety hazards.