A toilet repair guide
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Replacing a Toilet

Shut off the stop valve, flush to drain the tank, sponge out remaining water

Bathrooms
Intermediate
90 minutes
2/2/2026

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Tools Needed

  • adjustable wrench
  • bucket
  • sponge
  • putty knife
  • hacksaw
  • level
  • rubber gloves

Parts & Materials

Available from multiple retailers

AmazonUnavailable
Home DepotMore buying options coming soon
Lowe'sMore buying options coming soon

Available from multiple retailers

AmazonUnavailable
Home DepotMore buying options coming soon
Lowe'sMore buying options coming soon

Available from multiple retailers

AmazonUnavailable
Home DepotMore buying options coming soon
Lowe'sMore buying options coming soon

Available from multiple retailers

AmazonUnavailable
Home DepotMore buying options coming soon
Lowe'sMore buying options coming soon

Available from multiple retailers

AmazonUnavailable
Home DepotMore buying options coming soon
Lowe'sMore buying options coming soon

āš ļø Safety First

  • Turn off water and disconnect power to nearby outlets if required
  • Lift with your legs or use a helper to prevent back strain
  • Wear gloves and eye protection

  • šŸ”§ Tools Needed

  • adjustable wrench
  • bucket
  • sponge
  • putty knife
  • hacksaw
  • level
  • rubber gloves

  • šŸ“¦ Materials

  • new toilet
  • wax ring or waxless seal
  • closet bolts
  • toilet shims
  • silicone caulk

  • šŸ“‹ Step-by-Step Instructions

    1. Shut off the stop valve, flush to drain the tank, sponge out remaining water


    2. Disconnect the supply line at the tank, loosen tank to bowl bolts if two piece


    3. Pop off bolt caps at the base, remove nuts, rock the toilet to break the wax seal, lift straight up


    4. Scrape old wax from the flange, check flange level and integrity, install repair ring if needed


    5. Set new closet bolts in the flange, center and secure with plastic retainers


    6. Place new wax ring on the horn of the bowl or on the flange per manufacturer


    7. Lower the bowl squarely over bolts, press evenly to seat, do not twist excessively


    8. Install washers and nuts, snug both sides evenly, do not overtighten, shim if the bowl rocks, trim bolt ends if needed


    9. Set the tank on the bowl with new gasket if two piece, tighten alternating until stable


    10. Reconnect the supply line, open the valve, let tank fill, test flush, check for leaks


    11. Run a neat bead of silicone around the base leaving a gap at the back for leak detection


    šŸ’” Pro Tips

  • Warm the wax ring slightly to improve seating
  • If the floor is out of level, shim first, then caulk
  • Use a torque limiting wrench for tank bolts to avoid cracking porcelain

  • āŒ Common Mistakes to Avoid

  • Overtightening porcelain bolts, leads to cracks
  • Reusing a wax ring, leads to leaks
  • Ignoring wobbles, causes seal failure

  • šŸ” Troubleshooting

    Leak at base

    *Cause:* Poor wax seal or rocking bowl

    *Fix:* Reset with new ring, add shims, retighten evenly


    Tank sweats

    *Cause:* Cold water and humid room

    *Fix:* Install mixing valve or use anti sweat tank liner


    Weak flush

    *Cause:* Low tank water or clog

    *Fix:* Adjust fill valve height, use closet auger


    ā“ Frequently Asked Questions

    Q: Wax or waxless

    A: Both work, wax is simplest, waxless helps on uneven flanges


    Q: Flange below floor level

    A: Use flange spacers or an extra thick ring


    āœ… Checklist

    ☐Turn off water supply
    ☐Drain tank and bowl completely
    ☐Disconnect supply line
    ☐Remove old toilet
    ☐Clean flange area thoroughly
    ☐Install new closet bolts
    ☐Set wax ring
    ☐Position new toilet carefully
    ☐Secure with nuts (don't overtighten)
    ☐Reconnect water supply
    ☐Test for leaks
    ☐Caulk around base

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