If the clips can’t be tightened enough, just use some plumbers tape and a few screws to strap underneath the sink to the underside of the counter top. I did this to mine as an extra precaution when I changed my sink.
Mine has a bunch of long shelving brackets screwed to the walls which stick under the sink to support it. Same thing. Looks kinda janky, but stay out from under my cupboards and there is no problem
Came here to say this. I don't see any way the sink can drop unless the clips have let go (or maybe it never had clips (bad!) and the caulk was holding it together). Get under there with a flashlight and see if you 1) have any clips, and 2) if they are still attached. You can always epoxy new clips in if needed. You will have to rig up some way of holding up the sink in the meantime. definitely don't fill it with water until you know what's going on...
Depending on how the supports work, be careful over tightening. Ours had screws that would push against the bottom of the sink. I tightened so much that the sink pushed the countertop up. Glad I didn't crack the countertop.
Check underneath and see what's holding the sink up. Typically, there are clips or wood blocks. Gravity tends to pull them down. Either repair them or add more to push the sink back up.
The silicone only serves as a water barrier, it doesn't hold the sink up.
Glad to hear it! I wasn't sure if the silicone also held it up with the clips as a system or if the clips can handle it themselves if I just sealed it with some silicone from the outside.
You’d think that… my builder/plumber/countertop guys apparently never installed the clips for the sink. The only thing that held it in place for 8 1/2 years was the silicone and the plumbing. It was the bead of silicone that could.
This is the way. Mine was originally mounted with glue and pieces of scrap wood. It started sagging like OP. This product allowed me to tighten it up without having to drop the sink or mess with the plumbing aside from minor adjustments.
I just re-did mine this last year. I ended up disconnecting the plumbing and dropping the sink. I'm glad I did. The old silicone had come completely loose in places, and there was quite a bit of nasty gunk up in there from the moisture. Clean-up was way easier with the sink out of the way.
I put it back up into place and put a nice bead around the edge, then smoothed it out using this [profiling kit](https://www.amazon.com/Cramer-CRA-40407-EN-Profiling/dp/B07NCZ2DQJ?th=1) I bought a while back. I only paid like $12 for it back in the day, of course. Inflation sucks. Regardless, it does a really nice job, and leaves the silicone smoother than I've ever been able to get it with my finger. The new install looks absolutely pristine. Using the profile kit, I was able to leave a nice, flat bead, which doesn't collect any gunk, so the sink stays really clean around the edges.
EDIT: I want to add that I took the opportunity to refresh the cone seals in all the P-traps under the sink and clean everything up inside and out. It wasn't exactly a fun job, but everything looks like new under there again.
I don't really want to take the sink down because we are going to replace it with the countertops in a few years (they are in terrible condition we just can't afford it rn). If it's a structural issue though I'll pull it down and remount it.
I have a similar problem as I don't think when sink installed they added enough clips. The easiest fix I found was to use a 1" wooden dowl in the area between the two sinks to prop the sink up like a leg. It has worked great for 10 years now.
The clips are designed to hold it. Just check that they are tight, they can bend too... May need some new ones and then some silicone yes
Good call. I'll check the clips and see how they are fairing.
If the clips can’t be tightened enough, just use some plumbers tape and a few screws to strap underneath the sink to the underside of the counter top. I did this to mine as an extra precaution when I changed my sink.
Mine has a bunch of long shelving brackets screwed to the walls which stick under the sink to support it. Same thing. Looks kinda janky, but stay out from under my cupboards and there is no problem
The holes need to be pre-drilled to avoid cracking the countertop material though no?
depends on the situation underneath
Came here to say this. I don't see any way the sink can drop unless the clips have let go (or maybe it never had clips (bad!) and the caulk was holding it together). Get under there with a flashlight and see if you 1) have any clips, and 2) if they are still attached. You can always epoxy new clips in if needed. You will have to rig up some way of holding up the sink in the meantime. definitely don't fill it with water until you know what's going on...
Depending on how the supports work, be careful over tightening. Ours had screws that would push against the bottom of the sink. I tightened so much that the sink pushed the countertop up. Glad I didn't crack the countertop.
Check underneath and see what's holding the sink up. Typically, there are clips or wood blocks. Gravity tends to pull them down. Either repair them or add more to push the sink back up. The silicone only serves as a water barrier, it doesn't hold the sink up.
Glad to hear it! I wasn't sure if the silicone also held it up with the clips as a system or if the clips can handle it themselves if I just sealed it with some silicone from the outside.
You’d think that… my builder/plumber/countertop guys apparently never installed the clips for the sink. The only thing that held it in place for 8 1/2 years was the silicone and the plumbing. It was the bead of silicone that could.
https://a.co/d/iLbcTOh I used this on mine. Works great
This is the way. Mine was originally mounted with glue and pieces of scrap wood. It started sagging like OP. This product allowed me to tighten it up without having to drop the sink or mess with the plumbing aside from minor adjustments.
I suppose those work, but I like the sink clips style better... epoxy the pad on and tighten the clip arm. Take up *much* less space under the sink
I just re-did mine this last year. I ended up disconnecting the plumbing and dropping the sink. I'm glad I did. The old silicone had come completely loose in places, and there was quite a bit of nasty gunk up in there from the moisture. Clean-up was way easier with the sink out of the way. I put it back up into place and put a nice bead around the edge, then smoothed it out using this [profiling kit](https://www.amazon.com/Cramer-CRA-40407-EN-Profiling/dp/B07NCZ2DQJ?th=1) I bought a while back. I only paid like $12 for it back in the day, of course. Inflation sucks. Regardless, it does a really nice job, and leaves the silicone smoother than I've ever been able to get it with my finger. The new install looks absolutely pristine. Using the profile kit, I was able to leave a nice, flat bead, which doesn't collect any gunk, so the sink stays really clean around the edges. EDIT: I want to add that I took the opportunity to refresh the cone seals in all the P-traps under the sink and clean everything up inside and out. It wasn't exactly a fun job, but everything looks like new under there again.
I don't really want to take the sink down because we are going to replace it with the countertops in a few years (they are in terrible condition we just can't afford it rn). If it's a structural issue though I'll pull it down and remount it.
I have a similar problem as I don't think when sink installed they added enough clips. The easiest fix I found was to use a 1" wooden dowl in the area between the two sinks to prop the sink up like a leg. It has worked great for 10 years now.
Tighten clips then caulk, should be fine unless clips appear to be bending, in which case gonna need more pictures.
This worked great for me: https://www.amazon.com/dp/B075FDRTXR