Quadrant shower tray radius

your shower pan and drain assembly may not be tightened adequately, you may have a drain to 'p' trap leak, or the enclosure itself may not be completely sealed to water leakage.

If you have any means to visually inspect the plumbing, or the surround from the back side, do so while the shower is running, to identify where the water is coming from.

Since the radius and height are positive quantities, the volume will also be positive. First quadrant of the (r, V) plane.

All in the 1st as you can't have a negative radius meaningfully. If you do, the graph is in the 1st and 4th quadrants

Pi * r^2 * h is always a positive answer anyway.

If it only happens when you turn the water to the shower on, it must be a problem with the piping after the valve. Take the shower arm out and wrap it with Teflon, it could be as simple as leaking threads. It could also be a leaking/poorly soldered copper fitting, or even a defect in the enclosure itself.

Also check the following things:

The control unit, hose and shower head - depending on the type, some heads will hold water. Remove them and check to see if they are exhibiting signs of mold or possible failure. At 11 years old, the element could be on its way out. If your Mira unit has an auxiliary pump, it should be checked as well. If it's the shower head, you can try to soak it in white vinegar to remove the smell, or simply replace it. If you have well water, you should consider flushing the system to be sure water isn't being trapped somewhere. Also, if the iron content of the water is high, or if your water softener isn't operating properly, that could be an issue as well. The Mira control unit may need to be de-scaled or otherwise checked.

Check the shower stall walls (with no tub) at the bottom where they meet the basin, unless the shower enclosure is all one piece. There could be mold behind the intersection of the walls and base.

Look for any trace of mold growth around any other enclosure components.

If the shower is in a tub, remove the overflow cover on the tub and see if there is any trace of mildew or mold in that area. Follow your nose.

Finally, check for any excessive build up of soap scum, although this is less likely because you'd notice it more readily.

Things like this can be tough to diagnose, so just take things slow and one at a time.

would be easier to get the idiot that! installed to tile to remove tow peices and cut the recess they should have cut to begin with

well if the old one wont come out,,, then the new one wont go in,,,as its the same size,,, looks like you will need to risk them tiles to me, even if you cut the old one out, you cant cut the new one back in can you?
so its back to them tiles, go on, risk it!!!

If you look under that white nozzle you will notice a small hole that leads to the drain tray, clean out hole and the area or small enclosure around the white nozzle (clogged with coffee grounds), and make sure that if you pour a little water in that enclosure it goes to the drain tray. That will solve the water under machine problem.
For the amount of water from the coffee nozzle, check brew unit, you will have to remove the shower screen and clean, make sure that the unit is not clogged in one of the tubes.

There are four golden rules for installing a shower enclosure. The first golden rule is to make sure that the shower tray is level. If it is not, then problems will occur throughout the rest of the installation. Use a good quality spirit level and where possible install a tray that has adjustable legs. There are often problems associated with tiling over upstands as some are thick and difficult to set into the wall. The second golden rule is to install a tray that has a slim tiling up stand which is vertical and an integral part of the tray: This will make the installation easier, quicker and ensure it is totally watertight. Before installing the shower enclosure the third golden rule must be followed. A silicone sealer needs to be applied all the way around the join where the tiles meet the tray: This must be sealed first, to ensure there is no chance of water getting behind the wall channels and then into the walls. This is one of the biggest problems associated with shower installations but is easily solved if the silicon sealer is applied before the enclosure is fitted. The final golden rule is to fit the enclosure to the tiled surface and not on to a plastered wall, tiling up to it afterwards. Having installed the enclosure it is essential to use the same high quality silicone sealer around the outside of the enclosure. Sealing on the inside will cause leaking- not prevent it.