NGC plumbing NEW question

[fotoguzzi]

I'm trying to replace a faucet like the one in this pic. The plastic fasteners are rock hard tight and won't budge, maybe the previous owner who put them in used a glue? Or is it just the green corrosion on the threads?
So the top plastic part shown will loosen (not easily tho) its the lower connection to the bottom of the threads that is stuck and it doesn't have the nice thumb finger flange for grip. For extra challenge it's up behind the sink in a cabinet. Both hot and cold are stuck.
So question for those in the know.. would heat help? Should I heat the threaded pipe or the plastic part? I have a heat gun that could probably melt the plastic if not careful.



Or should I try cutting plastic off with a dremmel ? If I can get in there with it.

Here's a pic of the other sink where I finally got the faucet off. After nearly dislocating my left (good) shoulder.

[lucky phil]

This and some gentle heat. Available most big hardware stores.

https://www.thespruce.com/how-to-use-a-basin-wrench-2718720

Ciao

[nc43bsa]

If your fittings are like the last ones I worked on, you'll end up breaking the plastic nuts.  No problem, the new faucet comes with new ones.

[tris]

You could borrow my Basin Wrench if you were closer

https://www.victorianplumbing.co.uk/280mm-adjustable-basin-wrench?campaign=googlebase&gclid=Cj0KCQiA9OiPBhCOARIsAI0y71CegBVj1hdDBr59mgi8aDacpNFMN20UnnAV_BkjKt4w7iGfI7Bf6XsaAsvREALw_wcB&gclsrc=aw.ds

Darn it - Phil beat me!

[Mike Tashjian]

Basin wrench is what you should try first.  When that fails I go right to a oscillating tool. Cut the nut once and if you still can't spin it off cut it in half.   With plastic nuts any blade is fine, with metal my go to is carbide toothed.  Usually people use plumbers putty on faucets and that creeps down into the threads.  Many new sink surfaces are not compatible with putty. The newer surfaces need silicone if anything at all. The drain will need putty or silicone and the large sealing washer is a leak prone area where it goes against the bottom of the sink.  That washer has to seal around the threads of the tail section.     

[lucian]

Can you just unhook the drain tailpiece and lift the vanity top off? You then can just use some channel lock pliers to remove the nuts. Also much easier to install the new faucet ,  water supply lines and new drain piece and pop up rod with the counter top off on a couple of sawhorses or whatever.

[John A]

Basin wrench. Pronounced  ‘bison ranch’  by plumbers

[Tom]

Y'ep on the basin wrench.     BTDT many times on my rental properties.  Worth the money for less aggravation. 

[nsmith]

The last one I worked on in my house I ended up using a side grinder with a cut off wheel. I attacked the thing from above. Yes, foul language was used before it got to that point, but I will say the faucet gave up quickly at that stage of the game.

[chuck peterson]

Plumbing problems are usually electrical…

 

[Tom]

 

[fotoguzzi]

The valve came with a compression ferrule but the hose has a rubber insert with what looks like a slightly smaller ferrule, the bigger one fits right over it. Do I use both with this type hose?




remove repeated lines

[Mike Tashjian]

No, the compression ferrule will not be needed.  The gasket should be all you need.  I finger tighten them and then do about a half turn. Just tight enough to not leak and not damage the gasket.

[lucky phil]

No, the compression ferrule will not be needed.  The gasket should be all you need.  I finger tighten them and then do about a half turn. Just tight enough to not leak and not damage the gasket.

Yea I'll go with this from the images. Interestingly enough I was talking to a mate of mine this week and he asked me what the service life on these braded hoses is and I replied in my experience with them a long time, may be 20 years would be the expectation. Well surprisingly it's only 5 years apparently. His son had a 6 year old one fail and when he went to buy a replacement the plumbing specialist told him 5 years was the guarantee/expectation. My mate did a quick research himself and came up with the same figure. Now I'm worried.

https://dspace.mit.edu/bitstream/handle/1721.1/103065/11668_2016_91_ReferencePDF.pdf?sequence=1&isAllowed=y

Ciao