Description
Overview
The iFJF 34117 Waste Ball Valve Seal Kit is a direct replacement for the critical sealing component in Aqua Magic Style II, Style Lite, and Style Plus RV toilets. The waste ball valve seal creates the watertight barrier between your toilet bowl and the black water holding tank — when it fails, you get persistent odors, water leakage, and an unpleasant living environment in your RV or camper.
Over time, the factory rubber seal hardens, cracks, or loses elasticity due to exposure to chemicals, temperature extremes, and mechanical wear from the flush ball mechanism. This affordable seal kit restores a tight, odor-free seal without the expense of replacing the entire toilet assembly ($200-400 for a new RV toilet). Installation takes about 30 minutes with basic hand tools.
Key Features
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Direct OEM Replacement — Compatible with Aqua Magic Style II, Style Lite, Style Plus, and related Thetford RV toilet models
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Stops Odors & Leaks — Restores the water seal that prevents black tank odors from entering your RV living space
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Durable Rubber Construction — Manufactured from chemical-resistant rubber compound that withstands RV toilet chemicals and holding tank treatments
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Complete Kit — Includes ball valve seal, O-rings, and necessary gaskets for a thorough rebuild
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DIY-Friendly — Replace in approximately 30 minutes with basic hand tools; no special plumbing skills required
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Save $200+ — A $10-15 seal kit vs. $200-400 for a new RV toilet assembly
Technical Specifications
| Specification |
Details |
| Part Number |
34117 |
| Compatible Toilets |
Thetford Aqua Magic Style II, Style Lite, Style Plus |
| Material |
Chemical-Resistant Rubber Compound |
| Includes |
Waste Ball Valve Seal, O-Rings, Gaskets |
| Installation Time |
Approx. 30 Minutes |
Compatibility
| Toilet Model |
Compatibility |
| Aqua Magic Style II |
✅ Direct Fit |
| Aqua Magic Style Lite |
✅ Direct Fit |
| Aqua Magic Style Plus |
✅ Direct Fit |
| Other Thetford Residential-Style RV Toilets |
✅ May Fit — Verify Design |
Installation Guide
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Turn Off Water — Shut off water supply to the RV toilet
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Empty & Clean Bowl — Flush and thoroughly clean the toilet bowl and flush ball area
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Remove Old Seal — Access the waste ball valve area (typically by removing the toilet from the floor flange or accessing through the bowl), extract the old hardened seal
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Clean Seal Groove — Remove all debris, mineral deposits, and old seal residue from the seal groove
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Install New Seal — Press the new iFJF 34117 seal into the groove, ensuring even seating around the entire circumference
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Reassemble & Test — Reinstall toilet if removed, restore water, fill bowl, and check for leaks and proper seal operation
FAQ
Q: How do I know if my waste ball valve seal needs replacement?
A: Signs of a failing seal include: water in the toilet bowl draining slowly or not holding at all, persistent sewer odors in the RV bathroom, visible cracking or hardening of the rubber seal (visible when looking at the flush ball area), or the toilet requiring more frequent water refills to maintain the bowl seal.
Q: Can I replace the seal without removing the toilet from the floor?
A: On most Aqua Magic models, the seal is accessible from above after removing the flush ball mechanism — the toilet does not need to be removed from the floor flange. However, access is tight and removing the toilet (just two floor bolts) can make the job significantly easier.
Q: How long should an RV toilet ball valve seal last?
A: With regular use, expect 2-5 years from a quality seal. Factors that shorten seal life include: frequent use of harsh chemical holding tank treatments, extreme temperature swings (winter storage freeze-thaw cycles), and failure to maintain water in the bowl (a dry seal cracks faster).
Q: Will this stop my toilet from holding water?
A: If the water loss is caused by a worn ball valve seal, yes. If the toilet bowl itself is cracked or the flush ball is damaged, those are separate issues requiring different repairs. The majority of "toilet won't hold water" complaints in RV toilets are seal-related.
Q: Do I need any special lubricant for the new seal?
A: We recommend applying a thin coat of silicone-based plumber's grease or Thetford-approved seal lubricant to the new seal before installation. This protects the rubber, ensures smooth flush ball operation, and extends seal life. Never use petroleum-based lubricants as they degrade rubber.
Q: Is this the same as Thetford part 34117?
A: Yes. This aftermarket seal is manufactured to the same specifications as Thetford OEM part 34117 and provides equivalent fit and durability at a more accessible price point.
Q: Can I use chemical treatments with this seal?
A: Yes. The seal material is formulated to resist standard RV holding tank chemicals. For maximum seal longevity, avoid pouring undiluted chemicals directly onto the seal. Add treatments to the holding tank through the toilet bowl with water running.
Q: What if the new seal still doesn't hold water?
A: If the problem persists after installing a new seal, check: (1) The flush ball surface for scratches or damage that prevents sealing, (2) Proper seal seating in the groove (fully pressed in, no twists), (3) The toilet bowl itself for hairline cracks. The flush ball may also need replacement if heavily scratched.
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