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​Replacing a toilet flush tank | Toilet tank accessories change

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  • OVERALL DIFFICULTY INDEX: 4/10
  • IF YOU HAVE NO TOOLS, YOU PAY $35 TO GET THEM FOR THIS JOB
  • IF YOU HAVE NO EXPERIENCE YOU SPEND 3 HOURS TO CARRY OUT THIS JOB
  • NO SAFETY ISSUES​
BEFORE YOU START
  • You should not be suffering from back / shoulder pain when carrying this work.  
  • For dismantling the old water tank, please proceed in reverse order of the below pictorial. 
DISCLAIMER:
Our pictorials are of informative nature and do illustrate works carried out by ourselves at our own premises for our own use and satisfaction.
Readers who envisage to carry similar works inspired by the below method shall do this at their own risks and liability.

How to replace the flush tank of a toilet - toilet cistern change

1- You will start first by mounting some accessories on the toilet bowl. 
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2- Open the toilet flush accessories box and proceed to the component identification.   
3- Start with the main tank flush valve and its gasket. 
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4- Rotate by hand its nut from the other side and tighten well with a flat plumber wrench as shown. 
5- The toilet flush main gasket should look squeezed from inside. 
6- Now repeat the same for the toilet tank water valve. 
7- Upon fitting both valves, the water tank is ready to be mounted on the toilet.    
8- Position the gasket between toilet and tank and make sure it is well centered.
9- Place the tank on top of it and fit the flush tank mounting screws. 
10- Tighten the flush tank fixing nuts by hand first from below the toilet. 
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11- Use grip pliers from inside and tighten well the bottom nuts using universal pliers.  
12- Fit the toilet tank level float to the inlet water valve.
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13- Make sure it reaches the end of the thread while it is vertical and well centered. 
14- Connect the flexible water hose to the toilet flush tank float valve.
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15- Tighten slightly just enough so that the flexible barrel doesn’t rotate anymore. 
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16- If your wall outlet has no valve, roll enough Teflon tape to so that the thread is no more visible... 
17- ...and fit a mini-valve in using carton board  to avoid scratching it as shown.
18- Fit the other side of the toilet flexible hose to the wall outlet valve.   
19- Now prepare the remaining accessories consisting of flush valve remaining parts and handle. 
20- Drop the toilet flush valve ball into its rod. 
21- Loosen the tilt flush mechanism handle screws and remove the rod.
22- Place the handle in its rod while making sure it is almost horizontal but do not tighten it yet.
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23- Refit the rod while centering it at the same time within the rubber ball holder. Tighten both handle nut and screws.
24- Open the water tap and fill the tank. Bend the float rod as needed to adjust the water level. Check for leaks and test it. 
25- If the previous tank had no fixing screws to the wall, you may use some silicone for a more rigid and durable mount.
26- Squeeze out enough silicone to create a pad between the bowl and the wall tiles.

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27- The job is now complete. The silicone pads will be strong enough within 6 hours.

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