Pura Ceramic Cistern Fixing Bolts EB000595: What It Does and When to Replace It
The specific 70mm steel fixing kit used to anchor Pura cisterns to the toilet pan.
Cistern fixing bolts are the structural foundation of a close-coupled toilet, providing the tension required to compress the doughnut washer and create a watertight seal between the tank and bowl. Over time, these steel bolts can suffer from severe corrosion due to constant exposure to water and cleaning chemicals, leading to weeping leaks or a cistern that wobbles when the flush is activated. The EB000595 set is a direct replacement kit for Pura ceramic suites, featuring a 70mm length to accommodate various ceramic thicknesses. By replacing corroded hardware before it fails completely, you avoid the risk of sudden leaks that can cause significant floor damage or the difficult task of removing rusted nuts from delicate ceramics.
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EB000595 Specifications: Dimensions, Thread, and Materials
Technical specifications for the Pura 70mm cistern fixing kit.
| Part Code | EB000595 (CISTERNFB) |
|---|---|
| Part Type | Cistern Fixing Bolts |
| Bolt Length | 70mm |
| Material | Steel with Corrosion Protection |
| Compatible Range | Pura Ceramic Close Coupled Suites |
| Fixing Method | Through-hole Pan Coupling |
| Supplied With | 2x Bolts, Washers, and Fixing Nuts |
Three Things the EB000595 Controls Inside Your Pura Toilet
Technical functions of the cistern fixing hardware.
Watertight Compression
The fixing bolts provide the mechanical force necessary to compress the doughnut washer between the cistern and the pan. This compression is vital for creating a watertight seal. Without the correct tension from these steel bolts, water will seep through the coupling every time the toilet is flushed.
Tank-to-Pan Stability
Beyond sealing, these bolts act as the structural anchors for the water tank. They prevent the cistern from swaying or tilting when users lean against it. Maintaining this stability prevents stress on the inlet valve and flush pipe connections, which can lead to fatigue-related leaks in the plastic components.
Alignment Maintenance
The 70mm steel bolts ensure that the internal flush valve exit remains perfectly aligned with the ceramic inlet of the toilet pan. This alignment ensures a high-velocity flush and prevents internal turbulence that can lead to splashing or an incomplete flush cycle in close-coupled ceramic suites.
Why Replacing the EB000595 Bolts Fixes a Leaking Cistern
Practical reasons to update your cistern hardware.
Stops External Weeping
Water pooling around the base of your toilet is often caused by perished washers on the cistern bolts. Replacing the EB000595 set provides fresh, flexible washers that create a secure seal against the ceramic, stopping external leaks permanently.
Restores Structural Rigidity
A cistern that rocks when touched is a sign of hardware failure or loose bolts. Installing this 70mm steel kit allows you to tighten the tank securely to the pan, ensuring the toilet feels solid and operates without rattling or shifting during use.
Prevents Ceramic Fractures
Uneven tension from rusted or failing bolts puts stress on the ceramic mounting holes. Fresh bolts allow for even torque distribution across the cistern base, significantly reducing the risk of hairline fractures in the delicate pottery during installation or use.
Eases Future Maintenance
Rusted bolts are notoriously difficult to remove and often require cutting. By fitting the EB000595 kit now, you ensure that future repairs to the flush valve or doughnut washer can be performed easily by simply unscrewing the clean, protected hardware.
Installer Tip: Avoid Over-tightening Ceramic Fixings
When installing the EB000595 bolts, tighten them by hand until they are snug, then apply only a quarter-turn with a spanner. Over-tightening steel bolts against ceramic can cause the cistern or pan to crack instantly. Check for leaks after the first flush and only tighten further if a weep is detected.
Frequently Asked Questions: Pura Ceramic EB000595 Problems and Repairs
Common queries regarding Pura cistern hardware replacement.
How do I know if I need new cistern bolts rather than a doughnut washer?
If the water is weeping from the bolt heads inside the cistern or dripping directly from the nuts underneath the pan, the EB000595 bolts are likely the cause. However, if water leaks from the large central joint between the tank and bowl, you may also need a doughnut washer. We recommend replacing both the bolts and the washer simultaneously to ensure a complete, long-lasting repair.
Will these 70mm bolts fit my specific Pura toilet model?
The EB000595 kit is designed as a universal cistern fixing solution for Pura ceramic close-coupled suites. The 70mm length is standard for most modern cisterns, providing enough thread to pass through the tank, the pan, and still allow for the fixing nut to be securely fastened. If your cistern is exceptionally deep, please measure your existing bolts before ordering to confirm compatibility.
What else should I replace when installing these fixing bolts?
When you have the cistern removed to fit new EB000595 bolts, it is the ideal time to inspect other internal components. We suggest checking the condition of the doughnut washer (coupling washer) and the flush valve seal. These rubber parts often degrade at a similar rate to the bolt washers. Replacing them now prevents the need to dismantle the toilet again in the near future.
Can I fit these steel cistern bolts myself?
Yes, fitting the EB000595 kit is a manageable DIY task for most homeowners. You will need to turn off the water supply and drain the cistern completely before starting. The main challenge is often removing old, rusted hardware. Once the old bolts are out, the new kit simply slots into place. Just remember to be gentle with the ceramic and avoid over-tightening the new nuts.
Customer reviews
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MPN:EB000595
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Brand:Ebaths
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Product Code:EB000595
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Weight:3kg