This same thing happend to us...my husband finally found the right ones. He went from fixing it 1x a week...till..going on a month now with no fixing. Let me look for the Amazon info...
"uxcell Nitrile Rubber O-Rings 12mm OD 6mm ID 3mm Width, Metric Sealing Gasket, Pack of 50"
Check this out on Amazon uxcell Nitrile Rubber O-Rings 12mm OD 6mm ID 3mm Width, Metric Sealing Gasket, Pack of 50 https://www.amazon.com/dp/B07GQWB5GZ/ref=cm_sw_r_apan_glt_fabc_VDCR6BH3JCRAYYXP053X?_encoding=UTF8&psc=1