Complete Toilet Repair Guide: Fix Common Problems Yourself
Toilets are surprisingly simple mechanisms. Learn to fix the most common problems and save on plumber calls.
How Toilets Work
Basic Components
- Tank: Holds water for flushing
- Bowl: Waste collection and disposal
- Flush valve: Releases water from tank
- Fill valve: Refills tank after flush
- Flapper: Seals flush valve
- Float: Controls fill valve
Flush Mechanism
- Handle lifts flapper
- Water rushes into bowl
- Siphon action clears waste
- Flapper closes
- Fill valve refills tank
- Float stops fill valve
Running Toilet (Most Common)
Causes
- Worn flapper
- Misadjusted chain
- Faulty fill valve
- Overflow tube leak
Test: Food Coloring Method
- Add food coloring to tank
- Wait 30 minutes without flushing
- If color appears in bowl, flapper leaks
- Replace flapper
Fix: Replace Flapper
Parts needed: New flapper ($3-10)
Steps:
- Turn off water supply
- Flush to empty tank
- Unhook old flapper
- Install new flapper
- Adjust chain (slight slack when closed)
- Turn water on
- Test flush
Adjust Fill Valve
- Water level should be 1" below overflow tube
- Adjust float arm or clip
- Lower level if constantly running
- Save water, reduce noise
Weak or Incomplete Flush
Causes
- Clogged jets under rim
- Low water level
- Flapper closes too fast
- Partial blockage
Fix: Clean Jets
Materials: Wire hanger, vinegar, mirror
Steps:
- Look under rim for jets
- Use wire to clear mineral buildup
- Pour vinegar in overflow tube
- Let sit 30 minutes
- Scrub jets
- Flush several times
Adjust Water Level
- Should be at marked line in tank
- Bend float arm up (if float ball)
- Adjust clip (if float cup)
- More water = stronger flush
Toilet Won't Flush
Causes
- Broken handle/lift chain
- Flapper not lifting
- Clogged toilet
- Low water in tank
Fix: Handle/Chain Issues
- Open tank lid
- Check if handle lifts flapper
- Reconnect or adjust chain
- Replace handle if broken ($10-20)
- Chain should have 1/2" slack
Clogged Toilet
Plunger Method (First Try)
Proper technique:
- Use flange plunger (not sink plunger)
- Ensure water covers plunger cup
- Create tight seal
- Push down firmly, pull up sharply
- Repeat 15-20 times
- Should clear most clogs
Toilet Auger (Stubborn Clogs)
When plunger fails:
- Insert auger into drain
- Crank handle while pushing
- Break up or retrieve clog
- Withdraw auger
- Flush to test
What NOT to Flush
- "Flushable" wipes (not really flushable!)
- Paper towels
- Feminine products
- Cotton swabs
- Dental floss
- Cat litter
Leaking at Base
Causes
- Worn wax ring
- Loose toilet bolts
- Cracked bowl
Diagnosis
- Water pooling at base
- Odors (broken seal)
- Wobbling toilet
Fix: Wax Ring Replacement
Not a beginner DIY project
Requires:
- Removing toilet
- New wax ring
- Possibly new bolts
- Proper resetting
Call professional if:
- Not confident in abilities
- Heavy toilet (one-piece)
- Tile/floor concerns
- Need new bolts/flange
Constantly Refilling (Ghost Flushing)
Cause
- Slow leak from tank to bowl
- Usually worn flapper
Fix
- Replace flapper
- Check for mineral buildup on flush valve
- Clean valve seat
- May need new flush valve
Noisy Fill Valve
Causes
- Old/worn fill valve
- High water pressure
- Loose washer
Fix
- Replace fill valve ($15-30)
- Install pressure regulator if too high
- Tighten connections
- Modern fill valves very quiet
Phantom Flushes
Cause
- Slow leak lets water level drop
- Eventually triggers refill
- Wastes lots of water
Fix
- Replace flapper (most common)
- Check for cracks in overflow tube
- Inspect flush valve seat
- May need complete flush valve
Santa Fe Hard Water Issues
Mineral Buildup Problems
- Clogs jets and passages
- Faster component wear
- Causes leaks
- Affects flush performance
Solutions
- Regular vinegar cleaning
- Water softener installation
- Clean jets every 6 months
- Replace parts more frequently
Low-Flow Toilet Adjustments
Santa Fe Requirements
- 1.6 GPF maximum
- 1.28 GPF preferred
- Dual-flush best option
If Weak Flush
- Usually not low-flow issue
- Check for clogs in jets
- Verify water level correct
- May need better quality toilet
When to Replace Toilet
Replace If:
- Constant repairs needed
- Cracks in tank or bowl
- Excessive water use (old 3.5-5 GPF)
- Frequent clogs
- Wobbles despite tightening
- Outdated style
New Toilet Costs
- Basic: $100-250
- Mid-range: $250-500
- High-end: $500-1,000+
- Installation: $150-300
Toilet Maintenance Tips
Monthly
- Check for leaks
- Test flush operation
- Clean bowl and tank
- Listen for unusual sounds
Annually
- Food coloring test
- Replace flapper if over 3 years old
- Check all connections
- Clean jets thoroughly
As Needed
- Address problems immediately
- Don't ignore running toilet
- Fix leaks promptly
- Keep plunger handy
Parts to Keep on Hand
- Extra flapper ($5)
- Tank lever ($10)
- Fill valve ($20)
- Wax ring ($5)
- Toilet auger ($15)
- Quality plunger ($15)
Total investment: ~$70 for years of DIY repairs
When to Call a Professional
- Can't identify problem
- Water leaking at base
- Cracks in porcelain
- Complete blockage in drain line
- Need toilet replaced
- Multiple fixture problems
- Sewage backing up
Professional Services
Lobo Tech Toilet Services
- Repair all toilet types
- Wax ring replacement
- New toilet installation
- Diagnosis of chronic problems
- Same-day service
- Warranty on work
Call 505-316-4231 for expert toilet repair!
Don't let a running toilet waste 200 gallons per day. Fix it today or call the pros!
Need Professional Plumbing or HVAC Services?
Our expert technicians at Lobo Tech are available 24/7 to help with all your plumbing and HVAC needs in Santa Fe.