try toilet opener liquid

我用過這個，去年通的，現在還沒聽說有問題。

https://www.walmart.com/ip/Drano-Max-Gel-Clog-Remover-2-Qt/13399147?wmlspartner=wlpa&selectedSellerId=102846213&selectedOfferId=8707A9D902CB3944AA7F70481C196E00&conditionGroupCode=1&adid=2222222222713399147_102846213_164969490903_21605283830&wl0=&wl1=g&wl2=c&wl3=710223065476&wl4=pla-2338146347986&wl5=9010581&wl6=&wl7=&wl8=&wl9=pla&wl10=5596393568&wl11=online&wl12=13399147_102846213&veh=sem&gad_source=1&gad_campaignid=21605283830&gbraid=0AAAAADmfBIoFD3XwmbbDWN-3YLhc6DdRX&gclid=CjwKCAjwr5_CBhBlEiwAzfwYuDGTJrY9QwOvpgq3MIe_z_RXWQBz1plD6sS1n4jBDHrdfEJXjWn_ZRoCJJAQAvD_BwE