I am going to presume you mean the windscreen washer. The best fix is to just replace either one that is leaking. The "bottle" is usually made of plastic and is pretty hard to repair with any certainty that it will not leak again.
Blocked hose? Hole in the water container (which stops the water pressure within the bottle) ?
Check radiator hose, leaking water pump, look for hole in radiator, leaking coolant bottle or leaking seals.
Your engine may have a leaking hose connection or a leaking gasket at the water outlet. It could also be a leaking hose.
Usually a leaking hose into or out of the water pump (depending on its location), or the water pump gasket.
Leaking from? Hose Water pump Intake gasket
Hose leaking Water pump leaking
only if the gasket under thermostat is leaking and may-be it's the hose clamp on the hose that is leaking
In order to fix a split leaking water indoor air conditioner, simply locate the hose from the outside of the AC. Check to see if the hose is blocked. If so, unblock it. A blocked hose is a common reason why the AC will leak.
Several possibilities: 1. Radiator is leaking. 2. Coolant hose is leaking. 3. Hose clamp is loose. 3. Seal on water pump is leaking. 4. Overflow container is leaking. 5. Radiator clamp is loose or bad. Two highest possibilities: Radiator or hose is leaking.
If the hose is leaking, replace it.
Having to add collant & coolant leaking from the hose.
If there is coolant coming from it and it isn't a hose.