ShowerStore.com > Custom Shower System Guide > Shower Drains

Drain capacity

Drain capacity is another detail to be checked. It’s a simple matter of making sure that, in a shower stall, as much water will drain as the shower system delivers. Consult your local plumbing code.

Step by step process to a shower system design

1. Determine which shower fittings – including showerheads, handshowers, body sprays and tub fillers – are desired, and how many will be on at one time

2. Determine the total maximum water usage. Consider if the flow regulators will be removed

3. Determine the water pressure available

4. Select a mixing valve that will deliver the required water volume. Two valves or a pressure booster may be required

5. Add volume control valves to control the volume of water to individual outlets. Diverter valves may be added to switch between different outlets and may allow shut-off control.

6. Consider adding a steam unit for a combination shower/ steam bath.

7. Ensure the drain is large enough to accommodate the maximum water usage

8. Useful links to resources on the Internet