East Cambridgeshire District Council has voted to back the campaign to save the county's historic lodes.
Anger erupted after plans emerged to lower the levels of the ancient waterways, as part of a massive wetland creation scheme.
But East Cambs councillors have agreed the ancient waterways are "an important historical and recreation feature" and they're calling on the Environment Agency to maintain them in their present form.
More than 400 people have now signed an online petition - including South East Cambs MP James Paice. You can sign it here.