First attempt at plumbing fumble

foolio2000

Hi all,

I attempted today to replace two stop valves underneath my kitchen sink. But once completed there was no water pressure from my kitchen sink anymore.

Here are the steps I preformed. Hopefully someone will be able to tell me what I did wrong.

-Once I turned off the water I disconnected the supply line to the faucet.

-I cut the copper pipe behind the old valve. Then I brushed off the end of the exposed pipe.

-I placed the compression nut on the exposed pipe then slipped the ferrule in.

-I applied ptfe thread seal tape to all the threads. ~1 layer, some overlap on the end.

-Then I screwed the valve into the nut and the supply line into the valve and into the sink (replaced the line as well).

Then I turned the water back on, opened the valves and turned on the sink. All I get is a trickle.

The valves are compression in and compression out if that makes a difference.

My question is what did I do wrong? Did I tighten them too tight? I tried loosening some but still just a trickle.

Thanks.

VIPlumber

Pipe dope is not needed on compression fittings. Most likely it's fouling/blocking the valve. You'll have to take the valves off and clean them.

TheEplumber

Try cleaning the faucet aerator too

pdhawthorne

clean the aerator first, if that doesn't work, then take the valves that you put on and make sure that there is no blockage there,

http://www.hawthornesplumbing.com

foolio2000

Turns out it was indeed the faucet aerator. Thanks everyone for your help.

VIPlumber

So what was gumming up the aerator?

COLDIRON

It was probably the cause to replace the vales in the first place. OP thought it was the valves.