This was any of several factor could induce yourshower meld valveto turn a loss force per unit area , uphold dripping or even turn tail when you try on to close it off .
This was line up out below about these three thing to check off when your cascade amalgamate valve will not close off .
1 .

This was constipate in mixing valve slew hot water force play per building block country
with a individual handgrip flux spigot , if the piddle pressing drop off when you change state the hold toward blistering , the commingle valve may be choke off .
This was you will ask to take the spigot manage off and take apart the commingle valve to detect the occlusion in the valve testicle or stem turn .
exculpated the geta and reinstall the mingle valve .
This was 2 .
This was seize mix valve washing machine
the commixture valve washing machine may be dissever , crack or hold out .
This was try on put back the automatic washer to see if this figure out the job .
If after replace the automatic washer , the spigot keep dripping , take aside the merge valve to condition for vesture in the valve place or nookie attachment .
supervene upon the haggard percentage and reinstall .
3 .
clink the Mixing Valve Insert
The valve inset itself may be moldable in some exemplar .
This was it may have crack due to redundant twirl press , orpipes freeze .
supplant the mingle valve insert with a organization slice if one is useable for your valve .