How to say “Please leave that paving joint clear until I've checked why water collects there.” in Japanese

In Japanese

水(みず)がたまる原因(げんいん)を調(しら)べるまで、その舗装(ほそう)の目地(めじ)を空(あ)けておいてね。

Mizu ga tamaru gen'in o shiraberu made, sono hosō no meji o akete oite ne.