Gardena Pump set 3500/4 I have used this pump and hose set to pump out the water in my rain water reservoir in my garden. I have reviewed also the Gardena 13mm (1/2") hose and also Gardena pump suction hose 3.5m included in the set.
If you have long hose you need to have larger hose diamter to compensate the pressure loss. The larger the diameter there would be less pressure loss and better flow.
@@amirriazi267 I would assume it is just the opposite... the smaller the diameter the bigger the pressure. So, if you need more pressure (because the hose is longer), you would need a smaller diameter.
