Thank you for contacting RIDGID® Customer Support.
There are a number of reasons your vac may have reduced suction power. We recommend that you check the following:
1 – The most common reason for reduced performance is a clogged filter that is full of debris. Please check the condition of your filter – you may need to either clean or replace your filter.
2 - The drain cap could be loose or missing. You should check the connections.
3 – The hose may have holes or could be clogged – you should check the condition of your hose and clean or replace if necessary.
4 - The float (which is the device inside the filter cage beneath the filter) could be stuck in the upward position. Check the float - it should be moving freely.
5 – The drum is not secure to the power head. You should check to insure that the drum is properly secured to the power head.
If the above recommendations do not solve your problem, please contact us and we can attempt to troubleshoot the vacuum with you. Also, if its within 90 days, you may return the vac at Home Depot for an exchange.
If you have any further questions or concerns, feel free to call us at 1-800-4-RIDGID (1-800- 474-3443) or you may send your email to [email protected]