Thank you for your question regarding the Delta H2Okinetic® 5-Setting Slide Bar Hand Shower and I am happy to assist you today.
Unfortunately, there is no way to increase the water pressure on this model and I apologize for any inconvenience this may cause.
This shower head has been designed to dispense 2.0 gallons of water per minute at 80 psi. If you are more familiar with using a model which dispenses 2.5 gallons per minute or higher, you may notice a slight difference in the amount of water being dispensed.
If you would like to test your model to ensure that you are receiving 2.0 gallons of water per minute, please fill a pitcher or bucket for one minute and measure the amount of water to be certain the model is dispensing the full 2 gallons.
Also, if you are interested, we do carry several models which have a flow rate of 2.5 GPM. Please visit the link below to view all of our current models and ensure you select under the 'Max Flow Rate' tab, '2.5 gpm/9.5 l/min':
I hope this information is helpful and please feel free to give us a call if we can assist you with anything going forward.
Delta Faucet Company
Date published: 2018-01-26