Item Description
Replace your Broken Wirquin Macdee Metro Square Cistern Syphon Compatible with Metro Rapid Square models DSY7925, DSY8025, DSY8125, DSY8225, DSY8338, DSY8438
NOTE: Ensure you choose the correct shape and size — Macdee Metro syphons are available in Square, Round, Oblong and D-Shaped designs.
Product Features
- Metro three-piece syphon with quick-release coupling nut for easy maintenance — no need to remove the cistern.
- Metro Rapid SQUARE syphon range (MPNs: DSY7925, DSY8025, DSY8125, DSY8225, DSY8338, DSY8438).
- Available sizes: 7.5″, 8″, 9″, 9.5″, 10″ and 10.5″.
- WRAS Approved with integral internal overflow.
- Supplied with syphon back nut, flush pipe coupling nut, syphon seal, low-level flush pipe seal and diaphragm.
- For internal overflow: measure from base of cistern to waterline and add 1"; this must be at least 10 mm below any cistern aperture.
- Current production is supplied in Grey/Black, replacing earlier white/blue or grey finishes.
Details
- If you’re unsure what size you require, please contact us — we’re happy to help.
- This syphon comes in various sizes and shapes (Square / Round / Oblong / D-Shaped). Always match your cistern type.
- Do not confuse this with the one-piece Wirquin syphons — this is the Metro Rapid three-piece design.
- Relevant MPN codes for Square models: DSY7925 (7.5″), DSY8025 (8″), DSY8125 (9″), DSY8225 (9.5″), DSY8338 (10″), DSY8438 (10.5″).
Choosing the Correct Size & Shape (Macdee Metro Rapid – Square)
The Metro Rapid Square syphon range is available in multiple heights (7.5″–10.5″). Choosing the correct size ensures optimal flush and a proper cistern lid fit.
Method 1 – New Install / Replacing a Different Syphon
- Measure from the bottom of the cistern to the waterline.
- Add 25 mm (≈1") to this measurement.
- Ensure this final figure is at least 10 mm below any cistern aperture.
- Select the closest matching syphon height (see dropdown at top of page).
Method 2 – Replacing an Existing Metro Rapid (Square)
- Refer to the last photo for where to measure.
- Measure from the base of the bell/syphon to just under the flat square top.
- The measurement corresponds to the required syphon height (7.5″, 8″, 9″, 9.5″, 10″, or 10.5″).
Select your required size from the dropdown menu at the top of this page.
Questions & Answers
Q1: How does the internal overflow on a toilet syphon work?
A syphon will internally overflow when the water level within the cistern reaches the spillover point. Water then passes over into the down-leg of the syphon and discharges safely into the toilet bowl.
Q2: After replacing, why won’t the syphon flush, or only flushes if I “pump” the handle?
- Check the quick-release nut is tightened fully.
- Check the diaphragm washer is flat to the piston base and not torn/damaged.
- Check the sealing washer isn’t kinked or trapped.
- Sometimes the C-link can be a little tight; try adjusting or using a slightly longer link.
Need help figuring out if this product is right for your setup?
Send us your best bathroom selfies (or, you know, just your bathroom setup pics) to [email protected] or WhatsApp 07359 625424 us, and we'll help you flush your confusion away!