The answer depends on the fabrication materials of the walkway.
Contact the materials' vendor and ask whether water-seal is recommended, and if so, what products are recommended to seal the walkways.
Food, water, and a cold environment!
Yes The harbor seal needs lots of air to survive it lives in the water and on land but it can't breath water because it does not have gils
To "seal water" out. Pun.
the water pump seal is worn out you need a new water pump
Yes. The seal for the water pump is bad. Replace it.
i don t know. how do u seal a water pump?
Water pumps fail due to a bad bearing and/or shaft seal. Look at the bottom of the pump. There is a drain hole in the casting below the shaft. If the seal is bad then coolant will be leaking out of this hole.
you need a new water pump seal. also check to see if the shaft is worn might need to replace that too you need a new water pump
It's fairly difficult as you need to replace a seal thing and turn the water off.
it drinks sea water?
you will need lots and lots of space and he will need a lot of attention. you will need seal food, like fish. people mostly recommend that having a pet seal is a very bad idea.
Water leaking from the seal