diff --git a/CURATORS.md b/CURATORS.md
index 002a3c62..c5cfeea6 100644
--- a/CURATORS.md
+++ b/CURATORS.md
@@ -343,22 +343,23 @@ resolve any issues before the next curator shift the coming monday.
 
 ### Diskspace errors (and website sync debugging)
 
-* You can detect the problem by running `df`. If you see that `/` is out of space, we have a problem.
-* If you see that `/var/stackage/` is out of space, you can:
-  * run `./etc/diskspace/remove-old-stack-work-libs.hs [nightly|lts-XX]`
-  * If that is insufficient then remove all the old builds under the previous ghc/Cabal version:
-    * `rm -r /var/stackage/stackage/automated/work/[nightly|lts-XX]/unpack-dir/unpacked/*/.stack-work/dist/x86_64-linux/Cabal-X.Y.0.0/`
-
-  optionally:
-  * `rm -r /var/stackage/stackage/automated/work/lts*/unpack-dir/unpacked/`
-  * `rm -r /var/stackage/stackage/automated/work/nightly/unpack-dir/unpacked/`
+* You can check disk usage with `df -h`.
+* If you see that stackage `$HOME` is out of space, you can use `stack-clean-old` to clean up (note it defaults to "dry-run" mode):
+  * Enter `nix-shell -p haskellPackages.stack-clean-old` and then:
+    * `cd ~/stackage/automated/work/[nightly|ltsXX]/unpack-dir`
+    * `stack-clean-old list` to show shared `.stack-work/install` usage
+    * `stack-clean-old remove 9.X.Y` to remove its `.stack-work/install` subdir
+    * `cd unpacked`
+    * `stack-clean-old delete-work --subdir --yes` to remove each package's `.stack-work` subdir
+  * If that is still really insufficient then optionally:
+    * `rm -r /var/stackage/stackage/automated/work/[nightly|ltsXX]/unpack-dir/unpacked/`
 
 ### Wiping the cache
 
 Sometimes the cache can get corrupted which might manifest as `can't load .so/.DLL`.
-You can wipe the nightly cache and rebuild everything by doing
+As a last resort you can wipe the whole build cache to rebuild everything by doing
 `rm -rf /var/stackage/stackage/automated/nightly`.
-Replace nightly with `lts7` to wipe the LTS 7 cache.
+Replace `nightly` with `lts7` to wipe the LTS 7 cache.
 
 ### Force a single package rebuild