Oil the valves first, then gently slide the valve into the slot. Make sure that you are putting the right valve into the right space, otherwise the trumpet won't work. The valve should have a number on it denoting which space it goes in. After the valve is in, gently twist it clockwise until it locks in. After it locks in, tighten the ring that sits on top of the space for the valve.
NO! Baby oil wouldn't work for trumpet valves.
Look at your trumpet. Notice how there's tubing right by the piston/rotary valves. When you press a valve down it sends the air through a different, longer pipe, making the note lower. If you release a valve, the valve closes the longer tube and opens the shorter tube, creating a higher sound.
Each valve has two sets of holes, which direct the air flow either directly through, or when the valve is pressed, through additional tubing. By making the entire instrument slightly longer, it lowers the pitch.
Take the valve out, put valve oil on it and put it back in.
Any pool can have a hydrostatic valve and nothing has been made that cannot be broken eventually.
The Hydrostatic valve is usually on the lowest part of the pools floor. The hydrostatic valve is there to protect the pool from being lifted by ground water in the event that it is empty. it allows the ground water under the pool to get into the pool thereby stopping it from floating out of the ground on top of the ground water.
hydraulics uses the principle of hydrostatic pressure to work
I'm not sure if it can be installed after a pool has been installed, try contacting a company who makes these hydrostatic valves and see if it can be done. good luck.
A "relief valve" can only be accessed when the pool is empty, and no swimming pool should ever be left empty. The only exception is when absolutely necessary due to repair or resurfacing, and that should be completed within the shortest possible time. Any pool that is empty, and that has a relief valve, should have the valve removed for the entire time, regardless of the weather forecast. A "hydrostatic" relief valve opens and closes when needed as it attempts to equalize the pool water pressure with the ground water pressure. Human intervention is not involved because the pool is still filled. Hydrostatic valves are great in theory, but seldom work after a few years.
exspanion tank or relive valve
the hydrostatic valve is only to equalize pressure of ground water to that of the pool the only time it does anything is when the water table becomes higher in the ground water than in the swimming pool . it doesn't connect to anything. it is simply to keep the pool shell from floating out of the ground
For as long as you like just make sure that the pool has a hydrostatic valve or some other means to stop it from floating out of the ground if it starts raining or the water table underneath it rises. In gunite and concrete pools, the hydrostatic relief valve is located in the bottom drain. Sump or ShopVac the remaining water covering the drain, take out the screws, and remove the cover. Again, using a ShopVac, remove the water just beneath the cover and look inside the drain. There are two possibilities: 1) a relief valve that can be unscrewed and removed, or 2) a second pipe that doesn't point toward your pump and filter. Inside this pipe is a hydrostatic relief valve that probably won't open because of sand or dirt clogging it. Using the handle of a short screwdriver, tap the valve inside the pipe (you may not see it, but it is there) several times until water comes into the pool. There may also be hydrostatic relief valves near the bottom of the steep slope that can be removed. Good luck. -Bill
Yes just be careful that the hydrostatic valve works in case of ground water causing the pool to start floating.