Thank you for your question regarding the Delta Premium 5-Setting Slide Bar Hand Shower.
I am very sorry to hear that the hand shower wand feels as if it has extremely low pressure and I apologize for any inconvenience this has caused.
This hand shower wand has been designed to dispense a maximum of 2.5 gallons of water per minute at 80 psi, which is the highest allowable gallon per minute (GPM) flow rate that we currently offer. If you would like to test your model to ensure that you are receiving the full 2.5 GPM, please fill a pitcher or bucket for one minute and measure the amount of water the unit dispenses to be certain the model is dispensing 2.5 GPM.
If you are receiving less than 2.5 GPM, please soak the full shower head and hand held wand in a solution of 50/50 white vinegar and water for a few hours to break down any debris which may have built up in the shower head during the installation process or over time in general and make sure to flush out the head by running warm water through the unit for a few minutes.
I hope this helps to improve the amount of pressure you receive from the wand, although if you are still not receiving the full 2.5 GPM or if we may be able to assist you with anything else going forward, please do not hesitate to give us a call on our warranty line at 800-345-3358.
Delta Faucet Company
Date published: 2018-04-02