Dear. Ms.Mira
I discused with Mr.Ferry Winattha (pool contractor, PT BUANA TIRTA, 0816815932),
They will install the piping in the structure for japaneae hot bath (2FL) start from tomorrow 19th March,
maybe 2 or 3 days finished.
After that piping work will finished, you can start the concrete work.
If you have any question please contact to Mr.Ferry directly.
Thank you and Best regards,
Tanimoto Takahiro
Chief Engineering Officer