Standpipe Sub Assembly X9129-SUB

The Standpipe Sub Assembly (part# X9129-SUB) is a genuine Tacony OEM replacement part from the recovery and solution tank assembly of the Tornado Marathon SE 900 self-contained carpet extractor. It is the internal standpipe assembly that carries recovered water and protects the vacuum motor from ingestion.

What the Standpipe Sub Assembly does

The Standpipe Sub Assembly is the internal tube in the recovery tank that routes incoming dirty water and sets the height at which the float shuts the machine down. It is the last line of defence for the vacuum motor: it keeps recovered water and foam away from the motor intake as the tank fills.

When to replace the Standpipe Sub Assembly (X9129-SUB)

Replace it when the tube is cracked, when it has come loose from its mounting, or when the machine starts pulling water through to the motor before the tank is genuinely full. A machine that spits water from the exhaust is telling you the standpipe or float path has failed, and that is a repair to make immediately.

Standpipe Sub Assembly X9129-SUB — fitment and installation notes

Supplied as a sub-assembly so the tube and its fittings go in as a matched set. Check the float moves freely on the standpipe after fitting — a float that binds defeats the shutoff and the vacuum motor pays for it. Tacony builds the Tornado Marathon SE 900 and the Powr-Flite Prowler PFX900S on a single machine platform, so this component carries across both brands rather than belonging to either one. It is a shared Tacony component and may fit additional models beyond those listed — call us and we will confirm against your serial number.

Compatible Models for the Standpipe Sub Assembly

• Tornado Marathon SE 900 — Model 98170
• Powr-Flite Prowler PFX900S
• Powr-Flite PFX900SG

Twin City Vacuum has been selling and servicing commercial floor-care equipment since 1956 from 5415 West Broadway, Crystal, MN 55428. We stock genuine Tacony parts and ship nationwide. Browse the full Tornado 98170 parts catalogue, or see the manufacturer at tornadovac.com.

Frequently Asked Questions

What does the Standpipe Sub Assembly do on the Tornado Marathon SE 900?

The Standpipe Sub Assembly is the internal tube in the recovery tank that routes incoming dirty water and sets the height at which the float shuts the machine down. It is the last line of defence for the vacuum motor: it keeps recovered water and foam away from the motor intake as the tank fills.

How do I know if my Standpipe Sub Assembly needs replacing?

Replace it when the tube is cracked, when it has come loose from its mounting, or when the machine starts pulling water through to the motor before the tank is genuinely full. A machine that spits water from the exhaust is telling you the standpipe or float path has failed, and that is a repair to make immediately.

What models is the Standpipe Sub Assembly (part# X9129-SUB) compatible with?

The Tornado Marathon SE 900 (Model 98170), the Powr-Flite Prowler PFX900S and the PFX900SG. It is a shared Tacony part and may fit further models; call us to confirm.

How do I order the Standpipe Sub Assembly (part# X9129-SUB) or get help?

You can add the Standpipe Sub Assembly (part# X9129-SUB) directly to your cart on this page, or call us at 763-535-0770. Our staff at 5415 West Broadway, Crystal, MN 55428 has been servicing Tornado equipment since 1956 and can help confirm the right part for your machine.