I tried to find the circuit in circuit cellar but couldn't Charles

Now I took your suggestion of using the on chip counter ,It works perfectly with my 555 output now the problem is my 555 output isn't all that stable

I am getting a variable value of count for the same capacitance between pin 2 and gnd
How can I stabalise the pulse coming for each change in capacitance
This is a continous pulsar , used to measure water level on capacitance principle


I am using 555 in astable multivibrator mode.
I can't put new IC's unless it really works since my board is almost manufactured

http://www.ikraft.biz/netbaba/project/CKT.gif
( circuit Diagram In the new diagram I have given connection to p3.4 for counter instead of p1.2 )

Thank you
Deepak